VirtualTestSuites

[
  "Top-level string entries are treated as comments.",

  "Each object entry defines a virtual suite with the following fields:       ",
  " prefix: The name of the virtual suite. A virtual test name will be like   ",
  "     virtual/<prefix>/<base-test-name>.                                    ",
  " owners: A list of emails of the owners who are responsible for the virtual",
  "     suite. The owners will be copied on any bugs created for the virtual  ",
  "     suite, e.g. on virtual suite expiration.                              ",
  " platforms: A list of platforms on which the virtual suite will run.       ",
  "     Linux is recommended if the test suite is platform-agnostic.          ",
  " bases: A list of test directories or names that will be run under the     ",
  "     virtual suite.                                                        ",
  " exclusive_tests (optional): \"ALL\" or a list containing a subset of      ",
  "     `bases` specifying the tests that will be exclusively run under this  ",
  "     virtual suite. The specified base tests will be skipped on all        ",
  "     platforms (regardless of `platforms`). Corresponding virtual tests    ",
  "     under other virtual suites that don't specify the tests in their      ",
  "    `exclusive_tests` list will be skipped on all platforms, too.          ",
  " args: A list of command line switches that will be passed to the test     ",
  "     driver for the tests under this virtual suite.                        ",
  " expires: An expiration date or 'never' if the test suite is not expected  ",
  "     to expire. Tests will not be run starting from the expiration date.   ",

  {
    "prefix": "pna-permission",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/fetch/private-network-access"],
    "args": [
      "--enable-features=PrivateNetworkAccessPermissionPrompt",
      "--enable-blink-features=PrivateNetworkAccessPermissionPrompt",
      "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": ["phao@google.com", "lyf@google.com"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "pna-workers-disabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/fetch/private-network-access"],
    "args": ["--disable-features=PrivateNetworkAccessForWorkers",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": ["phao@google.com", "lyf@google.com"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "pna-workers-enabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/fetch/private-network-access"],
    "args": [
      "--enable-features=PrivateNetworkAccessForWorkers",
      "--disable-features=PrivateNetworkAccessForWorkersWarningOnly",
      "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": ["phao@google.com", "lyf@google.com"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "pna-iframes-enabled",
    "platforms": ["Linux", "Mac", "win"],
    "bases": ["external/wpt/fetch/private-network-access"],
    "args": ["--enable-features=PrivateNetworkAccessForIframes,CorsSafelistedHeaderValueSizeRelaxed",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": ["phao@google.com", "lyf@google.com"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "pna-iframes-warning",
    "platforms": ["Linux", "Mac", "win"],
    "bases": ["external/wpt/fetch/private-network-access"],
    "args": ["--enable-features=PrivateNetworkAccessForIframes,PrivateNetworkAccessForIframesWarningOnly,CorsSafelistedHeaderValueSizeRelaxed",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": ["phao@google.com", "lyf@google.com"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "reduce-accept-language",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["http/tests/navigation/language",
              "http/tests/inspector-protocol/network",
              "http/tests/serviceworker/reduce-accept-language/fetch-event-headers.html",
              "navigator_language/reduce_accept_language"],
    "exclusive_tests": ["http/tests/serviceworker/reduce-accept-language/fetch-event-headers.html",
                        "navigator_language/reduce_accept_language"],
    "args": ["--enable-features=ReduceAcceptLanguage",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "gpu",
    "platforms": ["Linux", "Mac", "Win", "Fuchsia"],
    "bases": [ "fast/canvas",
               "external/wpt/mediacapture-record/MediaRecorder-canvas-media-source.https.html",
               "external/wpt/webmessaging/postMessage_cross_domain_image_transfer_2d.sub.htm" ],
    "args": ["--enable-accelerated-2d-canvas",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "unsafe_webgpu",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["regress/regress-1104580.html"],
    "args": ["--enable-unsafe-webgpu", "--disable-threaded-compositing",
             "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },

  "The skipped base tests require a compositor, e.g. some uses requestIdleCallback",
  {
    "prefix": "threaded",
    "platforms": ["Linux", "Mac", "Win", "Fuchsia"],
    "bases": ["compositing/visibility",
              "compositing/webgl",
              "animations/stability",
              "external/wpt/animation-worklet",
              "external/wpt/css/css-animations",
              "external/wpt/css/css-backgrounds",
              "external/wpt/css/css-color/animation",
              "external/wpt/css/css-scroll-snap",
              "external/wpt/css/css-transforms/animation",
              "external/wpt/css/css-transforms/individual-transform/animation",
              "external/wpt/feature-policy/experimental-features",
              "external/wpt/long-animation-frame/tentative",
              "external/wpt/permissions-policy/experimental-features",
              "external/wpt/html/canvas/offscreen/manual/convert-to-blob",
              "external/wpt/scheduler/tentative/yield/yield-priority-idle-callbacks.html",
              "external/wpt/scroll-animations",
              "external/wpt/requestidlecallback",
              "external/wpt/web-animations/crashtests",
              "external/wpt/web-animations/timing-model/animations",
              "fast/events/pointerevents/pinch",
              "http/tests/devtools/isolated-code-cache",
              "http/tests/devtools/tracing",
              "http/tests/worklet",
              "printing",
              "synthetic_gestures",
              "transitions"],
    "exclusive_tests": ["external/wpt/feature-policy/experimental-features/vertical-scroll-touch-block-manual.tentative.html",
                        "external/wpt/permissions-policy/experimental-features/vertical-scroll-touch-block-manual.tentative.html",
                        "external/wpt/requestidlecallback",
                        "external/wpt/scheduler/tentative/yield/yield-priority-idle-callbacks.html",
                        "http/tests/devtools/isolated-code-cache"],
    "args": ["--enable-threaded-compositing"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "disable-intersection-optimization",
    "platforms": ["Linux", "Mac"],
    "bases": ["external/wpt/intersection-observer",
              "external/wpt/html/semantics/embedded-content/the-img-element",
              "external/wpt/html/semantics/embedded-content/the-iframe-element",
              "http/tests/intersection-observer",
              "intersection-observer",
              "wpt_internal/display-lock"],
    "args": ["--disable-features=IntersectionOptimization",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Oct 1, 2023"
  },
  {
    "prefix": "attribution-reporting-debug-mode",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/attribution-reporting"],
    "exclusive_tests": "ALL",
    "args": ["--attribution-reporting-debug-mode",
             "--enable-features=AttributionReportingCrossAppWeb,AttributionReportingReportVerification,PrivacySandboxAdsAPIsOverride,AggregationServiceMultipleCloudProviders:aws_cloud/https%3A%2F%2Fweb-platform.test%3A8444/gcp_cloud/https%3A%2F%2Fwww1.web-platform.test%3A8444",
             "--additional-private-state-token-key-commitments={\"https://web-platform.test:8444\":{\"PrivateStateTokenV3VOPRF\":{\"protocol_version\":\"PrivateStateTokenV3VOPRF\",\"id\":1,\"batchsize\":1,\"keys\":{\"0\":{\"Y\":\"AAAAAASqh8oivosFN46xxx7zIK10bh07Younm5hZ90HgglQqOFUC8l2/VSlsOlReOHJ2CrfJ6CG1adnTkKJhZ0BtbSPWBwviQtdl64MWJc7sSg9HPvWfTjDigX5ihbzihG8V8aA=\",\"expiry\":\"253402300799000000\"}}}}}",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Oct 8, 2023"
  },
  {
    "prefix": "attribution-reporting-cross-app-web",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["http/tests/inspector-protocol/attribution-reporting/os"],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=AttributionReportingCrossAppWeb,PrivacySandboxAdsAPIsOverride",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Oct 8, 2023"
  },
  {
    "prefix": "off-main-thread-css-paint",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/css/css-paint-api",
              "http/tests/csspaint"],
    "args": ["--enable-threaded-compositing",
             "--enable-blink-features=OffMainThreadCSSPaint",
             "--enable-gpu-rasterization",
             "--enable-accelerated-2d-canvas",
             "--disable-features=CanvasOopRasterization"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "prefer_compositing_to_lcd_text",
    "platforms": ["Linux", "Mac", "Win", "Fuchsia"],
    "bases": ["compositing/overflow",
              "compositing/squashing/keep-lcd-text.html",
              "scrollbars"],
    "args": ["--enable-prefer-compositing-to-lcd-text",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "threaded-no-composited-antialiasing",
    "platforms": ["Linux", "Mac", "Win", "Fuchsia"],
    "bases": ["animations"],
    "args": ["--enable-threaded-compositing",
             "--disable-composited-antialiasing"],
    "expires": "Jul 1, 2023"
  },

  "The skipped base test requires a compositor to pass as root scrollbar scrolling",
  "is always done on the compositor thread",
  {
    "prefix": "threaded-prefer-compositing",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/scroll-behavior",
              "fast/scroll-snap",
              "fast/scrolling",
              "external/wpt/css/cssom-view",
              "external/wpt/scroll-animations"],
    "exclusive_tests": ["fast/scrolling/scrollbars/mouse-scrolling-on-div-scrollbar-thumb-scaled.html"],
    "args": ["--enable-threaded-compositing",
             "--enable-prefer-compositing-to-lcd-text"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "gpu-rasterization",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["images",
              "external/wpt/css/css-images/gradient"],
    "args": ["--enable-gpu-rasterization",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "exotic-color-space",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["images"],
    "args": ["--force-color-profile=srgb",
             "--force-raster-color-profile=color-spin-gamma24",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  "The stable suite tests for conformance to HTML/web specifications, and",
  "detects unintentional changes to web exposed surface, so should not expire.",
  {
    "prefix": "stable",
    "platforms": ["Linux", "Mac", "Win", "Fuchsia"],
    "bases": ["fast/css3-text/css3-text-decoration/stable",
              "fast/dom/Window",
              "http/tests/navigation",
              "http/tests/sendbeacon",
              "http/tests/serviceworker/webexposed",
              "http/tests/worklet/webexposed",
              "inspector-protocol/dom-snapshot",
              "media/stable",
              "webexposed",
              "compositing/filters",
              "external/wpt/performance-timeline/tentative/with-filter-options-originA.html",
              "external/wpt/soft-navigation-heuristics/disabled.html"
            ],
    "exclusive_tests": ["media/stable"],
    "args": ["--stable-release-mode",
             "--disable-auto-wpt-origin-isolation",
             "--disable-field-trial-config",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "feature-policy-permissions",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/mediacapture-streams"],
    "exclusive_tests": ["external/wpt/mediacapture-streams/MediaStream-default-feature-policy.https.html"],
    "args": ["--use-fake-device-for-media-stream",
             "--use-fake-ui-for-media-stream",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  "The origin trials suite tests that OT-controlled features are exposed to",
  "the web as expected, so should not expire.",
  {
    "prefix": "origin-trials-runtimeflags-disabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["http/tests/origin_trials/webexposed"],
    "args": ["--disable-origin-trial-controlled-blink-features",
             "--stable-release-mode",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "android",
    "platforms": ["Linux"],
    "bases": ["fullscreen"],
    "args": ["--enable-features=OverlayScrollbar",
             "--enable-threaded-compositing",
             "--enable-prefer-compositing-to-lcd-text",
             "--enable-overscroll-notifications",
             "--enable-viewport",
             "--disable-canvas-aa",
             "--disable-composited-antialiasing"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "media-foundation-for-clear-dcomp",
    "platforms": ["Win"],
    "bases": ["external/wpt/media-source",
              "media"],
    "args": ["--use-gpu-in-tests",
             "--enable-features=MediaFoundationClearPlayback,MediaFoundationClearRendering:strategy/direct-composition",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "media-foundation-for-clear-frameserver",
    "platforms": ["Win"],
    "bases": ["external/wpt/media-source",
              "media"],
    "args": ["--use-gpu-in-tests",
             "--force-mfmediaengine-renderer",
             "--enable-features=MediaFoundationClearRendering:strategy/frame-server",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "media-gpu-accelerated",
    "platforms": ["Linux", "Mac", "Win", "Fuchsia"],
    "bases": ["external/wpt/media-source",
              "media"],
    "args": ["--use-gpu-in-tests",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "shared_array_buffer_on_desktop",
    "platforms": ["Linux"],
    "bases": ["external/wpt/wasm/jsapi/memory",
              "fast/workers/worker-atomics-wait.html",
              "fast/workers/worker-sharedarraybuffer-transfer.html",
              "fast/workers/chromium/worker-sharedarraybuffer-transfer-two-workers.html",
              "http/tests/inspector-protocol/issues"],
    "args": ["--enable-features=SharedArrayBuffer",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2025"
  },
  {
    "prefix": "mse-1mb-buffers",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["http/tests/media/media-source/stream_memory_tests"],
    "exclusive_tests": ["http/tests/media/media-source/stream_memory_tests/mediasource-appendbuffer-quota-exceeded-1mb-buffers.html"],
    "args": ["--mse-audio-buffer-size-limit-mb=1",
             "--mse-video-buffer-size-limit-mb=1",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "composite-clip-path-animation",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/css/css-masking/clip-path/animations",
              "animations/responsive/interpolation/clip-path-responsive.html",
              "css3/masking/clip-path-animation.html",
              "fast/css/clip-path-crash.html",
              "http/tests/devtools/animation/animation-timeline.js",
              "http/tests/devtools/animation/animation-web-anim-negative-start-time.js",
              "paint/invalidation/svg/invalid-clip-path-crash.html",
              "transitions/webkit-clip-path-equality.html"],
    "exclusive_tests": "ALL",
    "args": ["--enable-blink-features=CompositeClipPathAnimation",
             "--enable-threaded-compositing"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "main-thread-clip-path-animation",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/css/css-masking/clip-path/animations",
              "animations/responsive/interpolation/clip-path-responsive.html",
              "css3/masking/clip-path-animation.html",
              "fast/css/clip-path-crash.html",
              "http/tests/devtools/animation/animation-timeline.js",
              "http/tests/devtools/animation/animation-web-anim-negative-start-time.js",
              "paint/invalidation/svg/invalid-clip-path-crash.html",
              "transitions/webkit-clip-path-equality.html"],
    "exclusive_tests": "ALL",
    "args": ["--disable-blink-features=CompositeClipPathAnimation",
              "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "fractional-scroll-offsets",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/css/css-position/sticky/",
              "fast/scrolling/"],
    "args": ["--enable-blink-features=FractionalScrollOffsets",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "compute-pressure",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/compute-pressure",
              "wpt_internal/compute-pressure"],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=ComputePressure",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Feb 1, 2024"
  },
  {
    "prefix": "highdpi-threaded",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/css/css-backgrounds/hidpi",
              "external/wpt/css/css-paint-api/hidpi"],
    "args": ["--force-device-scale-factor=2",
             "--enable-threaded-compositing"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "scalefactor200",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["css3/filters",
              "external/wpt/css/css-paint-api/hidpi",
              "external/wpt/element-timing",
              "external/wpt/css/filter-effects",
              "external/wpt/css/css-grid/animation",
              "external/wpt/css/printing",
              "external/wpt/largest-contentful-paint",
              "fast/forms/file/file-appearance-no-default-width.html",
              "fast/hidpi/static",
              "http/tests/csspaint/hidpi",
              "http/tests/images/document-policy",
              "http/tests/inspector-protocol/page/page-captureScreenshot-clip-emulation.js"],
    "exclusive_tests": ["fast/hidpi/static"],
    "args": ["--force-device-scale-factor=2",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "scalefactor150",
    "platforms": ["Linux", "Win"],
    "bases": ["fast/events/synthetic-events",
              "fast/hidpi/static"],
    "exclusive_tests": ["fast/hidpi/static"],
    "args": ["--force-device-scale-factor=1.5",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "schemeful-same-site",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/cookies"],
    "args": ["--disable-features=SchemefulSameSite",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "dark-mode-classifier-transparency-and-num-colors",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["dark-mode/images"],
    "args": ["--blink-settings=preferredColorScheme=0,forceDarkModeEnabled=true",
             "--dark-mode-settings=ImageClassifierPolicy=1",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "dark-mode-default",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["dark-mode/colors",
              "dark-mode/images"],
    "args": ["--blink-settings=preferredColorScheme=0,forceDarkModeEnabled=true",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "dark-mode-images-filter-all",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["dark-mode/images"],
    "args": ["--blink-settings=preferredColorScheme=0,forceDarkModeEnabled=true",
             "--dark-mode-settings=ImagePolicy=0",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "dark-mode-images-filter-none",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["dark-mode/images"],
    "args": ["--blink-settings=preferredColorScheme=0,forceDarkModeEnabled=true",
             "--dark-mode-settings=ImagePolicy=1",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "presentation",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [],
    "args": ["--force-presentation-receiver-for-testing",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "single-renderer-process",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/longtask-timing/shared-renderer"],
    "args": ["--renderer-process-limit=1",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "compositor_threaded_scrollbar_scrolling",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/scrolling/scrollbars",
              "paint/invalidation/scroll/sticky"],
    "args": ["--enable-threaded-compositing",
             "--enable-prefer-compositing-to-lcd-text",
             "--disable-smooth-scrolling"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "percent-based-scrolling",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [],
    "args": ["--enable-features=WindowsScrollingPersonality",
             "--enable-threaded-compositing",
             "--enable-prefer-compositing-to-lcd-text"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "main-threaded-percent-based-scrolling",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/events/wheel",
              "fast/scrolling",
              "virtual/percent-based-scrolling"],
    "args": ["--enable-features=WindowsScrollingPersonality",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "compositor-threaded-percent-based-scrolling",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/events/wheel",
              "fast/scrolling"],
    "args": ["--enable-features=WindowsScrollingPersonality",
             "--enable-threaded-compositing",
             "--enable-prefer-compositing-to-lcd-text"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "compositor-threaded-percent-based-scrolling-dsf-2",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/scrolling/scrollbars/dsf-ready",
              "virtual/percent-based-scrolling"],
    "args": ["--enable-features=WindowsScrollingPersonality",
             "--enable-threaded-compositing",
             "--enable-prefer-compositing-to-lcd-text",
             "--force-device-scale-factor=2"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "smooth_compositor_threaded_scrollbar_scrolling",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/scrolling/scrollbars/scroll-chaining-for-gesture-based-scrolling.html"],
    "args": ["--enable-threaded-compositing",
             "--enable-prefer-compositing-to-lcd-text",
             "--enable-smooth-scrolling"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "hidpi",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/scrolling/scrollbars/dsf-ready"],
    "args": ["--disable-smooth-scrolling",
             "--force-device-scale-factor=2",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "compositor_threaded_scrollbar_scrolling_hidpi",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/scrolling/scrollbars/dsf-ready"],
    "args": ["--enable-threaded-compositing",
             "--enable-prefer-compositing-to-lcd-text",
             "--disable-smooth-scrolling",
             "--force-device-scale-factor=2"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "speech-with-unified-autoplay",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/speech-api"],
    "args": ["--autoplay-policy=document-user-activation-required",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "unified-autoplay",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/feature-policy"],
    "args": ["--autoplay-policy=document-user-activation-required",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "plz-dedicated-worker-disabled",
    "platforms": ["Linux"],
    "bases": ["external/wpt/content-security-policy/inside-worker",
              "external/wpt/content-security-policy/worker-src",
              "external/wpt/content-security-policy/gen",
              "external/wpt/fetch/",
              "external/wpt/html/cross-origin-embedder-policy",
              "external/wpt/html/semantics/scripting-1/the-script-element/module/import-meta",
              "external/wpt/referrer-policy",
              "external/wpt/resource-timing",
              "external/wpt/service-workers",
              "external/wpt/upgrade-insecure-requests",
              "external/wpt/workers",
              "external/wpt/xhr",
              "fast/workers",
              "http/tests/devtools",
              "http/tests/inspector-protocol",
              "http/tests/origin_trials",
              "http/tests/workers",
              "inspector-protocol/worker"
            ],
    "args": ["--disable-features=PlzDedicatedWorker"],
    "owners": [
      "yyanagisawa@chromium.org",
      "kouhei@chromium.org"
    ],
    "expires": "Nov 10, 2024"
  },
  {
    "prefix": "service-worker-storage-control-on-thread-pool",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/service-workers/service-worker/fetch-event.https.html"],
    "args": ["--enable-features=ServiceWorkerStorageControlOnThreadPool",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "direct-sockets",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/direct-sockets",
    	      "wpt_internal/direct-sockets"],
    "exclusive_tests": "ALL",
    "args": ["--isolated-context-origins=https://web-platform.test",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "display-compositor-pixel-dump",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [],
    "args": ["--enable-display-compositor-pixel-dump",
             "--enable-accelerated-2d-canvas",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "webgl-extra-video-texture-metadata",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/webgl/video-metadata"],
    "exclusive_tests": ["fast/webgl/video-metadata/texImage-video-last-uploaded-metadata.html"],
    "args": ["--enable-blink-features=ExtraWebGLVideoTextureMetadata",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },

  "The Wasm code cache test requires access to V8 internals, so only the",
  "virtual test should be run. Additionally the tiering budget is reduced to",
  "speed up the test.",
  {
    "prefix": "wasm-code-caching",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["http/tests/wasm/caching"],
    "exclusive_tests": "ALL",
    "args": ["--js-flags=--wasm-tiering-budget=100 --allow-natives-syntax",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024"
  },

  "==== Tests incompatible with the default WPT Origin Isolation start here ==VV",
  "The section below lists web tests that are incompatible with the WPT Origin",
  "Isolation mode of Site Isolation (see",
  "WebTestContentBrowserClient::GetOriginsRequiringDedicatedProcess) which",
  "isolates WPT origins on top of the default site-per-process mode (see",
  "ContentBrowserClient::ShouldEnableStrictSiteIsolation).",

  "--------------------------- document.domain -----------------------",
  "To test OOPIF support in various web platform features, we isolate all WPT",
  "*origins* (under assumptions that hopefully some WPT tests will exercise",
  "cross-origin scenarios, but that cross-site test coverage is unlikely).",
  "*Origin* isolation is incompatible with document.domain and this means that",
  "tests exercising document.domain might fail - such tests are listed as",
  "Skip below.  Note that by default Site Isolation isolates *sites* rather",
  "than *origin* and therefore avoids problems related to document.domain",
  "compatibility.",
  {
    "prefix": "not-site-per-process",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/html/browsers/origin/relaxing-the-same-origin-restriction",
      "external/wpt/html/browsers/windows/nested-browsing-contexts/frameElement-siblings.sub.html",
      "external/wpt/FileAPI/url/multi-global-origin-serialization.sub.html",
      "external/wpt/dom/events/EventListener-incumbent-global-1.sub.html",
      "external/wpt/dom/events/EventListener-incumbent-global-2.sub.html",
      "http/tests/dom/EventListener-incumbent-global-1.html",
      "http/tests/dom/EventListener-incumbent-global-2.html",
      "external/wpt/html/browsers/history/the-location-interface/allow_prototype_cycle_through_location.sub.html",
      "external/wpt/html/browsers/history/the-location-interface/location-prototype-setting-same-origin-domain.sub.html",
      "external/wpt/html/browsers/origin/cross-origin-objects/cross-origin-objects-on-new-window.html",
      "external/wpt/html/browsers/the-windowproxy-exotic-object/windowproxy-prototype-setting-same-origin-domain.sub.html",
      "external/wpt/wasm/serialization/module/window-domain-success.sub.html",
      "external/wpt/wasm/serialization/module/window-similar-but-cross-origin-success.sub.html",
      "external/wpt/wasm/serialization/module/share-module-cross-origin-fails.sub.html",
      "external/wpt/navigation-api/navigate-event/cross-window/click-crossdocument-crossorigin-sameorigindomain.sub.html",
      "external/wpt/navigation-api/navigate-event/cross-window/click-samedocument-crossorigin-sameorigindomain.sub.html",
      "external/wpt/navigation-api/navigate-event/cross-window/location-crossdocument-crossorigin-sameorigindomain.sub.html",
      "external/wpt/navigation-api/navigate-event/cross-window/location-samedocument-crossorigin-sameorigindomain.sub.html",
      "external/wpt/navigation-api/navigate-event/cross-window/open-crossdocument-crossorigin-sameorigindomain.sub.html",
      "external/wpt/navigation-api/navigate-event/cross-window/open-samedocument-crossorigin-sameorigindomain.sub.html",
      "external/wpt/navigation-api/navigate-event/cross-window/submit-crossdocument-crossorigin-sameorigindomain.sub.html",
      "external/wpt/navigation-api/navigate-event/cross-window/submit-samedocument-crossorigin-sameorigindomain.sub.html",
      "external/wpt/longtask-timing/longtask-in-childiframe-crossorigin.html",
      "external/wpt/longtask-timing/longtask-in-sibling-iframe-crossorigin.html",
      "http/tests/security/drag-drop-same-unique-origin.html"
    ],
    "exclusive_tests": "ALL",
    "args": ["--disable-site-isolation-trials",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "not-site-per-process-nonexclusive",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/performance-timeline/tentative"],
    "args": ["--disable-site-isolation-trials",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },

  "----------------------- origin-keyed agent clusters --------------------",
  "Origin-keyed agent clusters web platform tests are for the feature at",
  "https://html.spec.whatwg.org/#origin-keyed-agent-clusters. It doesn't make",
  "sense to test that feature when web-platform.test domains are being forced",
  "into origin-isolation mode. Note that since we also want coverage of this",
  "feature with site isolation enabled, we use a different virtual test suite",
  "than not-site-per-process, named no-auto-wpt-origin-isolation.",
  {
    "prefix": "no-auto-wpt-origin-isolation",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/html/browsers/origin/origin-keyed-agent-clusters",
      "external/wpt/html/infrastructure/urls/terminology-0",
      "external/wpt/navigation-api/navigate-event/cross-window",
      "http/tests/security/cross-frame-access-callback-explicit-domain-ALLOW.html",
      "http/tests/security/cross-frame-access-callback-explicit-domain-DENY.html",
      "http/tests/security/cross-frame-access-child-explicit-domain.html",
      "http/tests/security/cross-frame-access-parent-explicit-domain.html",
      "http/tests/security/cross-frame-access-port-explicit-domain.html",
      "http/tests/security/cross-frame-access-protocol-explicit-domain.html",
      "http/tests/security/canvas-remote-read-remote-image-document-domain.html"
    ],
    "exclusive_tests": ["external/wpt/html/browsers/origin/origin-keyed-agent-clusters"],
    "args": ["--disable-auto-wpt-origin-isolation",
             "--reset-browsing-instance-between-tests",
             "--disable-features=OriginAgentClusterDefaultEnable",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "focusless-spat-nav",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [],
    "args": ["--enable-blink-features=FocuslessSpatialNavigation",
             "--enable-spatial-navigation",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "passive-fingerprinting",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["http/tests/navigation/frozen-useragent.html",
              "http/tests/navigation/useragent.php"],
    "exclusive_tests": ["http/tests/navigation/frozen-useragent.html"],
    "args": ["--enable-features=ReduceUserAgent",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "fsa-incognito",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/file-system-access", "external/wpt/fs"],
    "args": ["--enable-features=IncognitoFileSystemContextForTesting",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "fsa-locking-scheme",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/fs"],
    "args": ["--enable-features=FileSystemAccessLockingScheme"],
    "expires": "never"
  },
  {
    "prefix": "controls-refresh-hc",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/forms/color-scheme"],
    "args": ["--enable-features=ForcedColors",
             "--force-high-contrast",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "use-common-select-popup",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/forms/color-scheme/select"],
    "args": ["--enable-features=UseCommonSelectPopup",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jan 31, 2024"
  },
  {
    "prefix": "forced-high-contrast-colors",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/forced-colors-mode",
              "html/details_summary/color-scheme-validation",
              "wpt_internal/css/css-pseudo/spelling-error-007-crash.html"],
    "exclusive_tests": ["external/wpt/forced-colors-mode"],
    "args": ["--force-high-contrast",
             "--enable-blink-features=ForcedColors,ForcedColorsPreserveParentColor",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "dark-color-scheme",
    "owners": ["futhark@chromium.org", "andruud@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/css/css-color/system-color-consistency.html",
              "external/wpt/css/css-color-adjust/rendering/dark-color-scheme",
              "fast/forms/color-scheme",
              "fast/forms/validation-bubble-appearance-edge.html",
              "fast/forms/validation-bubble-appearance-wrap.html",
              "fast/loader/plain-text-document-appearance.html",
              "http/tests/eye-dropper"],
    "args": ["--blink-settings=preferredColorScheme=0",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "force-eager",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/measure-memory"],
    "exclusive_tests": "ALL",
    "args": ["--enable-blink-features=MeasureMemory,ForceEagerMeasureMemory",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "payment-request-mandatory-total",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["http/tests/payments/payment-request-app-store-billing-mandatory-total.html"],
    "args": ["--disable-blink-features=PaymentRequestTotalOptional",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "css-text-autospace",
    "owners": [
      "kojii@chromium.org",
      "lingqi@chromium.org"
    ],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/css/css-text/text-autospace/"
    ],
    "args": [
      "--enable-blink-features=CSSTextAutoSpace",
      "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Dec 1, 2023"
  },
  {
    "prefix": "css-sign-related-functions-disabled",
    "owners": ["seokho@chromium.org", "sakhapov@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/css/css-values/signs-abs-computed.html",
      "external/wpt/css/css-values/signs-abs-serialize.html",
      "external/wpt/css/css-values/signs-abs-invalid.html"
    ],
    "args": ["--disable-blink-features=CSSSignRelatedFunctions",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Aug 1, 2024"
  },
  {
    "prefix": "css-text-spacing-trim",
    "owners": [
      "kojii@chromium.org",
      "lingqi@chromium.org"
    ],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/css/css-text/parsing/text-spacing-computed.html",
      "external/wpt/css/css-text/parsing/text-spacing-invalid.html",
      "external/wpt/css/css-text/parsing/text-spacing-valid.html",
      "external/wpt/css/css-text/parsing/text-spacing-trim-computed.html",
      "external/wpt/css/css-text/parsing/text-spacing-trim-invalid.html",
      "external/wpt/css/css-text/parsing/text-spacing-trim-valid.html",
      "external/wpt/css/css-text/text-spacing-trim/"
    ],
    "args": [
      "--enable-blink-features=CSSTextAutoSpace,CSSTextSpacingTrim",
      "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Apr 1, 2024"
  },
  {
    "prefix": "import-maps-disabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/import-maps/not-as-classic-script.html"],
    "args": ["--disable-blink-features=ImportMaps",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  "The overlay-scrollbar virtual suite is testing a feature that is enabled",
  "or not based on platform and settings, so it should not expire.",
  {
    "prefix": "overlay-scrollbar",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [ "external/wpt/css/css-ui/pointer-events-no-scrollbars-001.html",
               "external/wpt/css/css-ui/pointer-events-no-scrollbars-002.html"],
    "args": ["--enable-features=OverlayScrollbar",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  "The elastic-overscroll virtual suite is testing a feature that is enabled",
  "or not based on platform and settings, so it should not expire.",
  {
    "prefix": "elastic-overscroll",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [],
    "args": ["--enable-features=ElasticOverscroll",
             "--enable-threaded-compositing"],
    "expires": "never",
    "owners": ["arakeri@microsoft.com"]
  },
  "The non-overlay-scrollbar virtual suite is testing a feature that is",
  "enabled or not based on platform and settings, so it should not expire.",
  {
    "prefix": "non-overlay-scrollbar",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [],
    "args": ["--disable-features=OverlayScrollbar",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "fluent-non-overlay-scrollbar",
    "platforms": ["Win"],
    "bases": ["fast/scrolling/scrollbars"],
    "args": ["--enable-features=FluentScrollbar",
             "--enable-threaded-compositing",
             "--disable-smooth-scrolling"],
    "expires": "Jul 1, 2024",
    "owners": ["gastonr@microsoft.com", "gerchiko@microsoft.com", "yshalivskyy@microsoft.com"]
  },
  {
    "prefix": "fluent-non-overlay-scrollbar-dsf-150",
    "platforms": ["Win"],
    "bases": ["virtual/fluent-non-overlay-scrollbar/composited"],
    "args": ["--enable-features=FluentScrollbar",
             "--enable-threaded-compositing",
             "--force-device-scale-factor=1.5"],
    "expires": "Jul 1, 2024",
    "owners": ["gastonr@microsoft.com", "gerchiko@microsoft.com", "yshalivskyy@microsoft.com"]
  },
  {
    "prefix": "fluent-non-overlay-scrollbar-dsf-200",
    "platforms": ["Win"],
    "bases": ["virtual/fluent-non-overlay-scrollbar/composited"],
    "args": ["--enable-features=FluentScrollbar",
             "--enable-threaded-compositing",
             "--force-device-scale-factor=2"],
    "expires": "Jul 1, 2024",
    "owners": ["gastonr@microsoft.com", "gerchiko@microsoft.com", "yshalivskyy@microsoft.com"]
  },
  {
    "prefix": "fluent-non-overlay-scrollbar-hc",
    "platforms": ["Win"],
    "bases": ["virtual/fluent-non-overlay-scrollbar/composited",
              "virtual/fluent-non-overlay-scrollbar/hover-over-scrollbar-thumb.html",
              "virtual/fluent-non-overlay-scrollbar/colored-scrollbar.html"],
    "args": ["--enable-features=FluentScrollbar",
             "--enable-threaded-compositing",
             "--force-high-contrast"],
    "expires": "Jul 1, 2024",
    "owners": ["gastonr@microsoft.com", "gerchiko@microsoft.com", "yshalivskyy@microsoft.com"]
  },
  {
    "prefix": "fluent-non-overlay-scrollbar-dark-mode",
    "platforms": ["Win"],
    "bases": ["fast/forms/color-scheme/scrollbar",
              "virtual/fluent-non-overlay-scrollbar/hover-over-scrollbar-thumb.html"],
    "args": ["--enable-features=FluentScrollbar",
             "--blink-settings=preferredColorScheme=0,forceDarkModeEnabled=true",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024",
    "owners": ["gastonr@microsoft.com", "gerchiko@microsoft.com", "yshalivskyy@microsoft.com"]
  },
  {
    "prefix": "fluent-overlay-scrollbar",
    "platforms": ["Win"],
    "bases": ["virtual/fluent-non-overlay-scrollbar/hover-over-scrollbar-thumb.html",
              "virtual/fluent-non-overlay-scrollbar/colored-scrollbar.html"],
    "args": ["--enable-features=FluentOverlayScrollbar",
             "--enable-threaded-compositing",
             "--disable-smooth-scrolling"],
    "expires": "Jul 1, 2024",
    "owners": ["gastonr@microsoft.com", "gerchiko@microsoft.com", "yshalivskyy@microsoft.com"]
  },
  {
    "prefix": "fluent-overlay-scrollbar-dark-mode",
    "platforms": ["Win"],
    "bases": ["virtual/fluent-non-overlay-scrollbar/hover-over-scrollbar-thumb.html"],
    "args": ["--enable-features=FluentOverlayScrollbar",
             "--enable-threaded-compositing",
             "--blink-settings=preferredColorScheme=0,forceDarkModeEnabled=true"],
    "expires": "Jul 1, 2024",
    "owners": ["gastonr@microsoft.com", "gerchiko@microsoft.com", "yshalivskyy@microsoft.com"]
  },
  {
    "prefix": "fluent-overlay-scrollbar-hc",
    "platforms": ["Win"],
    "bases": ["virtual/fluent-non-overlay-scrollbar/hover-over-scrollbar-thumb.html"],
    "args": ["--enable-features=FluentOverlayScrollbar",
             "--enable-threaded-compositing",
             "--force-high-contrast"],
    "expires": "Jul 1, 2024",
    "owners": ["gastonr@microsoft.com", "gerchiko@microsoft.com", "yshalivskyy@microsoft.com"]
  },
  {
    "prefix": "text-antialias",
    "platforms": ["Linux", "Mac", "Win", "Fuchsia"],
    "bases": [],
    "args": ["--enable-font-antialiasing",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "hdr",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [],
    "args": ["--force-color-profile=scrgb-linear",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "color-spin",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [],
    "args": ["--force-color-profile=color-spin-gamma24",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "wide-gamut",
    "owners": ["aaronhk@chromium.org", "ccameron@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [],
    "args": ["--force-color-profile=display-p3-d65",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "split-cache-by-include-credentials",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/fetch/http-cache"],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=SplitCacheByIncludeCredentials",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "split-http-cache",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/fetch/http-cache",
              "external/wpt/signed-exchange"],
    "exclusive_tests": ["external/wpt/fetch/http-cache"],
    "args": ["--enable-features=SplitCacheByNetworkIsolationKey",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "not-split-http-cache",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/fetch/http-cache"],
    "exclusive_tests": "ALL",
    "args": ["--disable-features=SplitCacheByNetworkIsolationKey",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "disable-ua-client-hint",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/client-hints", "wpt_internal/client-hints"],
    "args": ["--disable-features=UserAgentClientHint",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024",
    "owners": ["victortan@chromium.org"]
  },
  {
    "prefix": "web-bluetooth-new-permissions-backend",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/bluetooth", "external/wpt/bluetooth"],
    "args": ["--enable-features=WebBluetoothNewPermissionsBackend",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "trust-tokens",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
        "external/wpt/trust-tokens/end-to-end",
        "http/tests/loading/trust-tokens",
        "http/tests/inspector-protocol/trust-tokens",
        "wpt_internal/trust-tokens"
    ],
    "exclusive_tests": "ALL",
    "args": [
        "--enable-features=PrivateStateTokens",
        "--enable-blink-features=PrivateStateTokens,PrivateStateTokensAlwaysAllowIssuance",
        "--additional-private-state-token-key-commitments={\"https://web-platform.test:8444\":{\"PrivateStateTokenV3VOPRF\":{\"protocol_version\":\"PrivateStateTokenV3VOPRF\",\"id\":1,\"batchsize\":1,\"keys\":{\"0\":{\"Y\":\"AAAAAASqh8oivosFN46xxx7zIK10bh07Younm5hZ90HgglQqOFUC8l2/VSlsOlReOHJ2CrfJ6CG1adnTkKJhZ0BtbSPWBwviQtdl64MWJc7sSg9HPvWfTjDigX5ihbzihG8V8aA=\",\"expiry\":\"253402300799000000\"}}}}}",
        "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "non-streaming-declarative-shadow-dom-enabled",
    "owners": ["masonf@chromium.org", "dom-dev@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/shadow-dom/declarative",
      "http/tests/inspector-protocol/issues/non-streaming-declarative-shadow-dom-issue.js"
    ],
    "args": ["--enable-features=DeprecatedNonStreamingDeclarativeShadowDOM"],
    "expires": "Feb 1, 2024"
  },
  {
    "prefix": "dom-parts-disabled",
    "owners": ["masonf@chromium.org", "dom-dev@chromium.org"],
    "platforms": ["Linux"],
    "bases": [
      "external/wpt/dom/parts",
      "fast/parser"
    ],
    "args": ["--disable-features=DOMPartsAPI",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Feb 1, 2024"
  },
  {
    "prefix": "details-styling-disabled",
    "owners": ["dbaron@chromium.org", "dom-dev@chromium.org"],
    "platforms": ["Linux"],
    "bases": [
      "external/wpt/html/rendering/the-details-element",
      "fast/multicol/span/summary-split.html",
      "html/details_summary/details-inline.html",
      "wpt_internal/html/rendering/the-details-element"
    ],
    "args": ["--disable-blink-features=DetailsStyling",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Apr 1, 2024"
  },
  {
    "prefix": "dir-pseudo-disabled",
    "owners": ["dbaron@chromium.org", "dom-dev@chromium.org"],
    "platforms": ["Linux"],
    "bases": [
      "external/wpt/css/selectors/dir-pseudo-on-bdi-element.html",
      "external/wpt/css/selectors/dir-pseudo-on-input-element.html",
      "external/wpt/css/selectors/dir-selector-auto.html",
      "external/wpt/css/selectors/dir-selector-querySelector.html",
      "external/wpt/html/dom/elements/global-attributes/dir-assorted.window.js",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-bdi-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-bdi-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-dir_auto-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-dir_auto-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-dir-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-dir-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-script-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-script-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-style-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-style-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-textarea-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-contained-textarea-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir-auto-div-append-child.html",
      "external/wpt/html/dom/elements/global-attributes/dir-auto-dynamic-changes.window.js",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-EN-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-EN-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir-auto-form-associated.window.js",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-EN-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-EN-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-N-EN.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-N-EN-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-N-EN-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-N-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-N-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-script-EN-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-script-EN-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-script-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-script-N-EN.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-script-N-EN-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-script-N-EN-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-script-N-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-script-N-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-input-script-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-isolate.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-N-EN.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-N-EN-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-N-EN-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-N-L.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-N-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-pre-mixed.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-pre-N-between-Rs.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-pre-N-EN.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-R.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-textarea-mixed.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-textarea-N-between-Rs.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-textarea-N-EN.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-textarea-script-mixed.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-textarea-script-N-between-Rs.html",
      "external/wpt/html/dom/elements/global-attributes/dir_auto-textarea-script-N-EN.html",
      "external/wpt/html/dom/elements/global-attributes/dir-bdi-script.html",
      "external/wpt/html/dom/elements/global-attributes/dir-slots-directionality.html",
      "external/wpt/html/dom/elements/global-attributes/document-dir.html",
      "external/wpt/html/dom/elements/global-attributes/lang-attribute-shadow.window.js",
      "external/wpt/html/dom/elements/global-attributes/lang-attribute.window.js",
      "external/wpt/html/dom/elements/global-attributes/the-lang-attribute-002.html",
      "external/wpt/html/dom/elements/global-attributes/the-lang-attribute-003.html",
      "external/wpt/html/dom/elements/global-attributes/the-lang-attribute-004.html",
      "external/wpt/html/dom/elements/global-attributes/the-lang-attribute-005.html",
      "external/wpt/html/dom/elements/global-attributes/the-lang-attribute-006.html",
      "external/wpt/html/dom/elements/global-attributes/the-lang-attribute-007.html",
      "external/wpt/html/dom/elements/global-attributes/the-lang-attribute-008.html",
      "external/wpt/html/dom/elements/global-attributes/the-lang-attribute-009.html",
      "external/wpt/html/dom/elements/global-attributes/the-lang-attribute-010.html"
    ],
    "args": ["--disable-blink-features=CSSPseudoDir",
             "--disable-blink-features=HTMLLangNewInheritance",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Feb 1, 2024"
  },
  {
    "prefix": "backface-visibility-interop",
    "owners": ["dbaron@chromium.org", "paint-dev@chromium.org"],
    "platforms": ["Linux"],
    "bases": [ "external/wpt/css/css-transforms" ],
    "args": ["--enable-features=BackfaceVisibilityInterop",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jan 15, 2024"
  },
  {
    "prefix": "portals",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [ "external/wpt/fetch/metadata/portal.https.sub.html",
               "external/wpt/portals",
               "http/tests/devtools/portals",
               "http/tests/inspector-protocol/portals",
               "http/tests/portals",
               "wpt_internal/portals" ],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=Portals,PortalsCrossOrigin",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "restrict-gamepad",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [ "external/wpt/gamepad" ],
    "args": ["--enable-features=RestrictGamepadAccess",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "third-party-cookie-phaseout-enabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/cookies/third-party-cookies",
      "external/wpt/service-workers/service-worker/partitioned-cookies.tentative.https.html",
      "external/wpt/workers/shared-worker-partitioned-cookies.tentative.https.html",
      "http/tests/inspector-protocol/issues/third-party-cookie-phaseout-exclusion.js"
    ],
    "args": ["--test-third-party-cookie-phaseout",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Mar 1, 2024"
  },
  {
    "prefix": "third-party-storage-partitioning",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "wpt_internal/file-system-api",
      "wpt_internal/storage/quota/partitioned-webkitTemporaryStorage-usage-details.tentative.sub.html",
      "wpt_internal/storage/quota/partitioned-webkitPersistentStorage-quota-usage-details.tentative.sub.html",
      "wpt_internal/web-locks/storage-deprecation-trial-enabled.https.html",
      "wpt_internal/service-worker/storage-deprecation-trial-enabled.https.html",
      "wpt_internal/webstorage/general-storage-deprecation-trial-enabled-local.sub.https.html",
      "wpt_internal/webstorage/general-storage-deprecation-trial-enabled-session.sub.https.html",
      "wpt_internal/webstorage/storage-cross-origin-redirect-local.sub.https.html",
      "wpt_internal/webstorage/storage-cross-origin-redirect-session.sub.https.html",
      "wpt_internal/webstorage/storage-deprecation-trial-disabled-local.sub.https.html",
      "wpt_internal/webstorage/storage-deprecation-trial-disabled-session.sub.https.html",
      "wpt_internal/webstorage/storage-deprecation-trial-enabled-local.sub.https.html",
      "wpt_internal/webstorage/storage-deprecation-trial-enabled-session.sub.https.html",
      "wpt_internal/webstorage/storage-deprecation-trial-redirect-local.sub.https.html",
      "wpt_internal/webstorage/storage-deprecation-trial-redirect-session.sub.https.html",
      "wpt_internal/webstorage/storage-same-origin-redirect-local.sub.https.html",
      "wpt_internal/webstorage/storage-same-origin-redirect-session.sub.https.html",
      "external/wpt/FileAPI/BlobURL/cross-partition.tentative.https.html",
      "external/wpt/storage/partitioned-estimate-usage-details-caches.tentative.https.sub.html",
      "external/wpt/storage/partitioned-estimate-usage-details-indexeddb.tentative.https.sub.html",
      "external/wpt/storage/partitioned-estimate-usage-details-service-workers.tentative.https.sub.html",
      "external/wpt/web-locks/partitioned-web-locks.tentative.https.html",
      "external/wpt/workers/shared-worker-partitioned.tentative.html",
      "external/wpt/service-workers/service-worker/partitioned.tentative.https.html",
      "external/wpt/service-workers/service-worker/partitioned-claim.tentative.https.html",
      "external/wpt/service-workers/service-worker/partitioned-cookies.tentative.https.html",
      "external/wpt/service-workers/service-worker/partitioned-getRegistrations.tentative.https.html",
      "external/wpt/service-workers/service-worker/partitioned-matchAll.tentative.https.html",
      "external/wpt/webstorage/localstorage-basic-partitioned.tentative.sub.html",
      "external/wpt/webstorage/sessionStorage-basic-partitioned.tentative.sub.html",
      "external/wpt/webmessaging/broadcastchannel/cross-partition.https.tentative.html",
      "external/wpt/IndexedDB",
      "external/wpt/webstorage/localstorage-about-blank-3P-iframe-opens-3P-window.partitioned.tentative.html",
      "external/wpt/secure-contexts/shared-worker-insecure-first.https.html",
      "external/wpt/secure-contexts/shared-worker-secure-first.https.html",
      "fast/filesystem",
      "external/wpt/html/browsers/windows/post-message",
      "http/tests/inspector-protocol/storage/dom-storage-set-items-by-storage-key.js",
      "http/tests/inspector-protocol/storage/indexed-db-set-items-by-storage-key.js",
      "http/tests/storage/partitioned-storage"
    ],
    "args": ["--disable-features=ThirdPartyStoragePartitioning",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "post-message-first-party-to-third-party-different-bucket-same-origin-blocked",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/html/browsers/windows/post-message"],
    "args": ["--enable-features=PostMessageFirstPartyToThirdPartyDifferentBucketSameOriginBlocked",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024",
    "owners": ["arichiv@chromium.org"]
  },
  {
    "prefix": "post-message-third-party-to-first-party-different-bucket-same-origin-blocked",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/html/browsers/windows/post-message"],
    "args": ["--enable-features=PostMessageThirdPartyToFirstPartyDifferentBucketSameOriginBlocked",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024",
    "owners": ["arichiv@@chromium.org"]
  },
  {
    "prefix": "post-message-third-party-to-third-party-different-bucket-same-origin-blocked",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/html/browsers/windows/post-message"],
    "args": ["--enable-features=PostMessageThirdPartyToThirdPartyDifferentBucketSameOriginBlocked",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024",
    "owners": ["arichiv@@chromium.org"]
  },

  "isInputPending requires threaded compositing and layerized iframes",
  {
    "prefix": "threaded-composited-iframes",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/is-input-pending"],
    "exclusive_tests": "ALL",
    "args": ["--enable-threaded-compositing",
             "--disable-auto-wpt-origin-isolation"],
    "expires": "Jul 1, 2023"
  },

  {
    "prefix": "oopr-canvas2d",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [ "fast/canvas",
               "external/wpt/mediacapture-record/MediaRecorder-canvas-media-source.https.html",
               "external/wpt/webmessaging/postMessage_cross_domain_image_transfer_2d.sub.htm" ],
    "args": [ "--enable-features=CanvasOopRasterization",
              "--enable-accelerated-2d-canvas",
              "--enable-gpu-rasterization",
              "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "disable-frequency-capping-for-overlay-popup-detection",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["http/tests/subresource_filter/overlay_popup_ad"],
    "exclusive_tests": "ALL",
    "args": ["--disable-features=FrequencyCappingForOverlayPopupDetection",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "web-app-window-controls-overlay",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/html/webappapis/system-state-and-capabilities/the-navigator-object/navigator-window-controls-overlay.html"],
    "args": ["--enable-features=WebAppWindowControlsOverlay",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "first-party-sets",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "http/tests/inspector-protocol/network",
      "http/tests/inspector-protocol/issues"
    ],
    "args": ["--use-related-website-set={\"primary\":\"https://firstparty.test\",\"associatedSites\":[\"https://cookie.test\"]}",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "no-different-origin-dialogs",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/html/webappapis/user-prompts/cannot-show-simple-dialogs/confirm-different-origin-frame.sub.html",
              "external/wpt/html/webappapis/user-prompts/cannot-show-simple-dialogs/prompt-different-origin-frame.sub.html"],
    "args": ["--enable-features=SuppressDifferentOriginSubframeJSDialogs",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "force-renderer-accessibility",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["accessibility/accessibility-beforematch-marker-crash.html",
              "accessibility/accessibility-node-appendChild-crash.html",
              "accessibility/details-summary-crash.html",
              "accessibility/slot-poison.html",
              "accessibility/virtual-node-child-removal.html",
              "accessibility/virtual-node-parent-removal.html",
              "accessibility/virtual-node-build-parent.html",
              "accessibility/virtual-node-build-parent-multiple.html",
              "accessibility/virtual-node-removed-from-document.html",
              "accessibility/virtual-node-repair-document.html",
              "dom/legacy_dom_conformance/html/level2/core/createAttributeNS06.html",
              "external/wpt/accessibility/",
              "external/wpt/dom/ranges/Range-deleteContents.html",
              "external/wpt/html/semantics/embedded-content/the-iframe-element/iframe-initially-empty-is-updated.html",
              "external/wpt/html/semantics/interactive-elements/the-dialog-element/inert-svg-hittest.html",
              "editing/text-iterator/auto-expand-details.html",
              "editing/text-iterator/auto-expand-details-shadowdom.html"],
    "args": ["--force-renderer-accessibility",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
  "prefix": "force-renderer-accessibility-parser-yield-and-delay-often",
    "platforms": ["Linux"],
    "bases": ["external/wpt/accessibility/crashtests/removed-from-flat-tree.html"],
    "args": ["--force-renderer-accessibility",
             "--enable-blink-features=HTMLParserYieldAndDelayOftenForTesting",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "no-alloc-direct-call",
    "platforms": ["Linux"],
    "bases": [
      "fast/canvas",
      "external/wpt/html/canvas/element/layers/2d.layer.invalid-calls.beginLayer-reset-endLayer.html",
      "external/wpt/html/canvas/element/layers/2d.layer.invalid-calls.beginLayer-restore.html",
      "external/wpt/html/canvas/element/layers/2d.layer.invalid-calls.beginLayer-save-endLayer.html",
      "external/wpt/html/canvas/element/layers/2d.layer.invalid-calls.endLayer.html",
      "external/wpt/html/canvas/element/layers/2d.layer.invalid-calls.save-beginLayer-restore.html",
      "external/wpt/html/canvas/element/layers/2d.layer.invalid-calls.save-endLayer.html",
      "external/wpt/html/canvas/element/layers/2d.layer.several-complex.html",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.beginLayer-reset-endLayer.html",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.beginLayer-reset-endLayer.worker.js",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.beginLayer-restore.html",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.beginLayer-restore.worker.js",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.beginLayer-save-endLayer.html",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.beginLayer-save-endLayer.worker.js",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.endLayer.html",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.endLayer.worker.js",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.save-beginLayer-restore.html",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.save-beginLayer-restore.worker.js",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.save-endLayer.html",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.invalid-calls.save-endLayer.worker.js",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.several-complex.html",
      "external/wpt/html/canvas/offscreen/layers/2d.layer.several-complex.w.html"
    ],
    "args": ["--enable-fake-no-alloc-direct-call-for-testing",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "view-transition",
    "platforms": ["Linux", "Mac", "Win"],
    "owners": ["view-transitions-api@chromium.org"],
    "bases": ["external/wpt/css/css-view-transitions",
              "wpt_internal/view-transition",
              "view-transition",
              "inspector-protocol/css/css-get-styles-for-view-transition.js",
              "inspector-protocol/css/css-get-keyframes-for-view-transitions.js",
              "inspector-protocol/dom/dom-get-dom-for-view-transition.js",
              "external/wpt/soft-navigation-heuristics/navigation-api-view-transition.tentative.html"],
    "exclusive_tests": "ALL",
    "args": ["--enable-threaded-compositing"],
    "expires": "May 1, 2024"
  },
  {
    "prefix": "view-transition-on-navigation",
    "platforms": ["Linux", "Mac", "Win"],
    "owners": ["view-transitions-api@chromium.org"],
    "bases": ["wpt_internal/view-transition-on-navigation"],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=ViewTransitionOnNavigation",
             "--enable-threaded-compositing"],
    "expires": "May 1, 2024"
  },
  {
    "prefix": "view-transition-wide-gamut",
    "platforms": ["Linux", "Mac", "Win"],
    "owners": ["view-transitions-api@chromium.org"],
    "bases": ["external/wpt/css/css-view-transitions",
              "wpt_internal/view-transition",
              "view-transition",
              "inspector-protocol/css/css-get-styles-for-view-transition.js",
              "inspector-protocol/css/css-get-keyframes-for-view-transitions.js",
              "inspector-protocol/dom/dom-get-dom-for-view-transition.js"],
    "exclusive_tests": "ALL",
    "args": ["--enable-threaded-compositing",
             "--force-color-profile=display-p3-d65"],
    "expires": "May 1, 2024"
  },
  {
    "prefix": "view-transition-mpa-serialization",
    "platforms": ["Linux", "Mac", "Win"],
    "owners": ["view-transitions-api@chromium.org"],
    "bases": ["external/wpt/css/css-view-transitions",
              "wpt_internal/view-transition",
              "view-transition",
              "inspector-protocol/css/css-get-styles-for-view-transition.js",
              "inspector-protocol/css/css-get-keyframes-for-view-transitions.js",
              "inspector-protocol/dom/dom-get-dom-for-view-transition.js",
              "external/wpt/soft-navigation-heuristics/navigation-api-view-transition.tentative.html"],
    "exclusive_tests": "ALL",
    "args": ["--enable-threaded-compositing",
             "--enable-blink-features=SerializeViewTransitionStateInSPA"],
    "expires": "May 1, 2024"
  },
  {
    "prefix": "view-transition-types",
    "platforms": ["Linux", "Mac", "Win"],
    "owners": ["view-transitions-api@chromium.org"],
    "bases": ["wpt_internal/view-transition-types"],
    "exclusive_tests": "ALL",
    "args": ["--enable-threaded-compositing",
             "--enable-blink-features=ViewTransitionTypes"],
    "expires": "May 1, 2024"
  },
  {
    "prefix": "mutation-events-disabled",
    "platforms": ["Linux"],
    "bases": [],
    "args": ["--disable-blink-features=MutationEvents",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Sep 1, 2024"
  },
  {
    "prefix": "popover-hint-disabled",
    "owners": ["masonf@chromium.org", "dom-dev@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/html/semantics/popovers/popover-anchor-idl-property.tentative.html",
      "external/wpt/html/semantics/popovers/popover-anchor-nesting.tentative.html",
      "external/wpt/html/semantics/popovers/popover-attribute-all-elements.html",
      "external/wpt/html/semantics/popovers/popover-attribute-basic.html",
      "external/wpt/html/semantics/popovers/popover-beforetoggle-opening-event.html",
      "external/wpt/html/semantics/popovers/popover-change-type.html",
      "external/wpt/html/semantics/popovers/popover-css-properties.tentative.html",
      "external/wpt/html/semantics/popovers/popover-document-open.html",
      "external/wpt/html/semantics/popovers/popover-events.html",
      "external/wpt/html/semantics/popovers/popover-focus-2.html",
      "external/wpt/html/semantics/popovers/popover-focus.html",
      "external/wpt/html/semantics/popovers/popover-invoker-reset.html",
      "external/wpt/html/semantics/popovers/popover-invoking-attribute.html",
      "external/wpt/html/semantics/popovers/popover-light-dismiss.html",
      "external/wpt/html/semantics/popovers/popover-move-documents.html",
      "external/wpt/html/semantics/popovers/popover-overlay.html",
      "external/wpt/html/semantics/popovers/popover-removal-2.html",
      "external/wpt/html/semantics/popovers/popover-removal.html",
      "external/wpt/html/semantics/popovers/popover-shadow-dom.html",
      "external/wpt/html/semantics/popovers/popover-target-action-hover.tentative.html",
      "external/wpt/html/semantics/popovers/popover-types-with-hints.tentative.html",
      "external/wpt/html/semantics/popovers/popover-types.html"
    ],
    "args": ["--disable-blink-features=HTMLPopoverHint",
      "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "expose-lcp-render-time",
    "platforms": [
      "Linux",
      "Mac",
      "Win"
    ],
    "bases": [
      "external/wpt/largest-contentful-paint/non-tao-image-load-after-fcp.tentative.html",
      "external/wpt/largest-contentful-paint/non-tao-image-load-before-fcp-render-after.tentative.html",
      "external/wpt/largest-contentful-paint/non-tao-image-load-before-fcp-render-at-fcp.tentative.html",
      "external/wpt/largest-contentful-paint/non-tao-image-subsequent-lcp-candidate.tentative.html"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-blink-features=ExposeRenderTimeNonTaoDelayedImage",
      "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "parakeet",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/parakeet"],
    "args": ["--enable-features=InterestGroupStorage,AdInterestGroupAPI,Parakeet",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "fledge-kanon-status-below-threshold",
    "platforms": ["Linux", "Mac", "Win"],
    "owners": ["behamilton@google.com", "caraitto@chromium.org", "pauljensen@chromium.org", "mmenke@chromium.org", "morlovich@chromium.org", "qingxinwu@google.com"],
    "bases": [
      "external/wpt/fledge/tentative/kanon-status-below-threshold.https.window.js"
    ],
    "args": [
      "--enable-features=InterestGroupStorage,PrivacySandboxAdsAPIsOverride,FencedFrames:implementation_type/mparch,FledgeConsiderKAnonymity",
      "--disable-features=CookieDeprecationFacilitatedTesting,FledgeEnforceKAnonymity"
    ],
    "expires": "Sep 1, 2024"
  },
  {
    "prefix": "fledge-rounding",
    "platforms": ["Linux", "Mac", "Win"],
    "owners": ["behamilton@google.com", "caraitto@chromium.org", "pauljensen@chromium.org", "mmenke@chromium.org", "morlovich@chromium.org", "qingxinwu@google.com"],
    "bases": [
      "external/wpt/fledge/tentative/round-a-value.https.window.js"
    ],
    "args": [
      "--enable-features=InterestGroupStorage,PrivacySandboxAdsAPIsOverride,FencedFrames:implementation_type/mparch,FledgeRounding:fledge_bid_reporting_bits/8/fledge_score_reporting_bits/8/fledge_ad_cost_reporting_bits/8",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Sep 1, 2024"
  },
  {
    "prefix": "automatic-lazy-frame-loading",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "wpt_internal/lazyembed",
      "wpt_internal/async-script-scheduling"
    ],
    "exclusive_tests": ["wpt_internal/lazyembed"],
    "args": [
      "--enable-features=AutomaticLazyFrameLoadingToEmbeds:timeout/1000,AutomaticLazyFrameLoadingToEmbedUrls:allowed_websites/http%3A%2F%2Fbad3p.test%3A3001%7C%2Fembed,AutomaticLazyFrameLoadingToAds:timeout/5000,DelayAsyncScriptExecution:delay_async_exec_target/cross_site_with_allow_list/delay_async_exec_allow_list/http%3A%2F%2Fbad3p.test",
      "--disable-field-trial-config", "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "automatic-lazy-frame-loading-ads",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [],
    "args": ["--enable-features=AutomaticLazyFrameLoadingToAds:timeout/1000",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "async-script-scheduling-disabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/async-script-scheduling"],
    "args": ["--disable-features=DelayAsyncScriptExecution",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "async-script-scheduling-apply-to-cross-site-only",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/async-script-scheduling"],
    "args": ["--enable-features=DelayAsyncScriptExecution:delay_async_exec_target/cross_site_only",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "async-script-scheduling-apply-to-allowlist",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/async-script-scheduling"],
    "args": ["--enable-features=DelayAsyncScriptExecution:delay_async_exec_target/cross_site_with_allow_list/delay_async_exec_allow_list/http%3A%2F%2Fbad3p.test%7C%2Fwpt_internal%2Fasync-script-scheduling%2Fresources%2Fscript.sub.js",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "async-script-scheduling-finished-parsing",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/async-script-scheduling"],
    "args": ["--enable-features=DelayAsyncScriptExecution:delay_async_exec_delay_type/finished_parsing",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "async-script-scheduling-finished-parsing-with-dom-content-loaded-wait-for-async-script",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/async-script-scheduling"],
    "args": ["--enable-features=DelayAsyncScriptExecution:delay_async_exec_delay_type/finished_parsing,DOMContentLoadedWaitForAsyncScript",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "async-script-scheduling-first-paint-or-finished-parsing",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/async-script-scheduling"],
    "args": ["--enable-features=DelayAsyncScriptExecution:delay_async_exec_delay_type/first_paint_or_finished_parsing",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "low-priority-script-loading",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["http/tests/devtools/network/resource-priority.js"],
    "args": ["--enable-features=LowPriorityScriptLoading",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "lcp-multiple-updates-per-element",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/largest-contentful-paint/update-on-style-change.tentative.html"
    ],
    "args": [
      "--enable-features=LCPMultipleUpdatesPerElement",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "lcp-mouseover-heuristics",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/largest-contentful-paint/mouseover-heuristics-element.tentative.html",
      "external/wpt/largest-contentful-paint/mouseover-heuristics-background.tentative.html"
    ],
    "args": [
      "--enable-features=LCPMouseoverHeuristics",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "low-priority-async-script-execution",
    "platforms": ["Linux", "Mac", "Win"],
    "exclusive_tests": "ALL",
    "bases": ["http/tests/low-priority-async-script-execution"],
    "args": ["--enable-features=LCPScriptObserver,LowPriorityAsyncScriptExecution:low_pri_async_exec_timeout/100ms/low_pri_async_exec_exclude_lcp_influencers/true",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": [
      "alexnj@chromium.org",
      "chikamune@chromium.org"
    ],
    "expires": "Mar 1, 2024"
  },
  {
    "prefix": "browsing-topics",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/browsing-topics"
    ],
    "exclusive_tests": [
      "external/wpt/browsing-topics"
    ],
    "args": ["--enable-features=BrowsingTopics,PrivacySandboxAdsAPIsOverride",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Aug 10, 2023"
  },
  {
    "prefix": "private-aggregation",
    "platforms": ["Linux"],
    "bases": [
      "external/wpt/private-aggregation"
    ],
    "exclusive_tests": [
      "external/wpt/private-aggregation"
    ],
    "args": [
      "--enable-privacy-sandbox-ads-apis",
      "--enable-features=FencedFramesDefaultMode,AggregationServiceMultipleCloudProviders:aws_cloud/https%3A%2F%2Fweb-platform.test%3A8444,FencedFramesEnforceFocus",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "private-aggregation-developer-mode",
    "platforms": ["Linux"],
    "bases": [
      "wpt_internal/private-aggregation"
    ],
    "exclusive_tests": [
      "wpt_internal/private-aggregation"
    ],
    "args": [
      "--enable-privacy-sandbox-ads-apis",
      "--private-aggregation-developer-mode",
      "--enable-features=FencedFramesDefaultMode,AggregationServiceMultipleCloudProviders:aws_cloud/https%3A%2F%2Fweb-platform.test%3A8444/gcp_cloud/https%3A%2F%2Fwww1.web-platform.test%3A8444,PrivateAggregationApiBundledEnhancements,PrivateAggregationApiMultipleCloudProviders",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "shared-storage-fenced-frame-mparch",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/shared-storage",
      "http/tests/inspector-protocol/shared-storage",
      "http/tests/inspector-protocol/storage/shared-storage.js",
      "http/tests/inspector-protocol/storage/shared-storage-delete.js",
      "http/tests/inspector-protocol/storage/shared-storage-set.js",
      "http/tests/inspector-protocol/storage/shared-storage-tracking-disabled.js"
    ],
    "exclusive_tests": [
      "external/wpt/shared-storage",
      "http/tests/inspector-protocol/shared-storage"
    ],
    "args": ["--enable-features=SharedStorageAPI,FencedFrames:implementation_type/mparch,PrivacySandboxAdsAPIsOverride,FencedFramesAPIChanges,FencedFramesDefaultMode,SharedStorageAPIM118,FencedFramesEnforceFocus",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "shared-storage-fenced-frame-mparch-selecturl-limit",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/shared-storage-selecturl-limit/"
    ],
    "exclusive_tests": [
      "external/wpt/shared-storage-selecturl-limit/"
    ],
    "args": ["--enable-features=SharedStorageAPI,FencedFrames:implementation_type/mparch,FencedFramesAPIChanges,FencedFramesDefaultMode,FencedFramesEnforceFocus,PrivacySandboxAdsAPIsOverride,SharedStorageSelectURLLimit:SharedStorageSelectURLBitBudgetPerPageLoad/9,SharedStorageAPIM118",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jan 1, 2024"
  },
  {
    "prefix": "task-tracking",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/task-tracking"],
    "exclusive_tests": "ALL",
    "args": ["--enable-blink-features=UnexposedTaskIds"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "fenced-frame-mparch",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "http/tests/fenced_frame",
      "wpt_internal/fenced_frame",
      "http/tests/inspector-protocol/fenced-frame",
      "external/wpt/html/anonymous-iframe",
      "external/wpt/fenced-frame",
      "external/wpt/fetch/private-network-access/fenced-frame-subresource-fetch.tentative.https.window.js",
      "external/wpt/fetch/private-network-access/fenced-frame.tentative.https.window.js",
      "external/wpt/fetch/private-network-access/fenced-frame-no-preflight-required.tentative.https.window.js"
    ],
    "exclusive_tests": [
      "http/tests/fenced_frame",
      "wpt_internal/fenced_frame",
      "external/wpt/fenced-frame",
      "http/tests/inspector-protocol/fenced-frame",
      "external/wpt/fetch/private-network-access/fenced-frame-subresource-fetch.tentative.https.window.js",
      "external/wpt/fetch/private-network-access/fenced-frame.tentative.https.window.js",
      "external/wpt/fetch/private-network-access/fenced-frame-no-preflight-required.tentative.https.window.js"
    ],
    "args": ["--enable-features=FencedFrames:implementation_type/mparch,PrivacySandboxAdsAPIsOverride,SharedStorageAPI,NoncedPartitionedCookies,Fledge,InterestGroupStorage,AdInterestGroupAPI,AllowURNsInIframes,BiddingAndScoringDebugReportingAPI,ComputePressure,FencedFramesEnforceFocus,FencedFramesM120FeaturesPart1,FencedFramesM120FeaturesPart2",
             "--enable-blink-features=FencedFramesAPIChanges,FencedFramesDefaultMode",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Dec 31, 2023"
  },
  {
    "prefix": "cors-non-wildcard-request-headers",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/fetch/api/cors/cors-preflight.any.js"],
    "args": ["--enable-features=CorsNonWildcardRequestHeadersSupport",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "system-color-picker-appearance",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/forms/color-scheme/color/color-picker-appearance.html"],
    "args": ["--enable-features=SystemColorChooser",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "dark-system-color-picker-appearance",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/forms/color-scheme/color/color-picker-appearance.html"],
    "args": ["--blink-settings=preferredColorScheme=0", "--enable-features=SystemColorChooser",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  "The following tests never pass in the default Blink test runner due to",
  "forced frame updates, but still pass in the full browser.",
  {
    "prefix": "no-forced-frame-updates",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "dom/domparsing/document-render-blocking-no-block.html",
      "external/wpt/css/css-transitions/render-blocking",
      "external/wpt/html/browsers/browsing-the-web/history-traversal/pagereveal",
      "external/wpt/html/dom/render-blocking"
    ],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=NoForcedFrameUpdatesForWebTests",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },

  {
    "prefix": "enable-system-cursor-size-for-svg",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/events/mouse-cursor-image-set-svg.html"],
    "args": [
      "--enable-features=SystemCursorSizeSupported",
      "--disable-headless-mode",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2023"
  },

  {
    "prefix": "origin-agent-cluster-default-warning",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [ "wpt_internal/origin-agent-cluster-default-warning" ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-features=OriginAgentClusterDefaultWarning",
      "--disable-features=OriginAgentClusterDefaultEnable",
      "--disable-auto-wpt-origin-isolation",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2024"
  },

  {
    "prefix": "webauthn-remote-desktop-client-override",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [ "external/wpt/webauthn/remote-desktop-client-override.tentative.https.html" ],
    "args": [
      "--webauthn-remote-desktop-support",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "mediastreamtrack-transfer",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/mediacapture-streams/MediaStreamTrack-iframe-transfer.https.html",
      "external/wpt/mediacapture-streams/MediaStreamTrack-iframe-audio-transfer.https.html"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-blink-features=MediaStreamTrackTransfer",
      "--enable-features=MediaStreamTrackTransfer",
      "--use-fake-device-for-media-stream=display-media-type=browser",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "force-defer-script",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/html/semantics/scripting-1/the-script-element/defer-script/"],
    "args": ["--enable-features=ForceDeferScriptIntervention",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "force-in-order-script",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/in-order-script-scheduling/force-in-order"],
    "args": [
      "--enable-features=ForceInOrderScript",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "selective-in-order-script",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/in-order-script-scheduling/selective-in-order"],
    "args": [
      "--enable-features=SelectiveInOrderScript,SelectiveInOrderScriptTarget:allow_list/http%3A%2F%2Fbad3p.test%7Csync-script-1.js",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "threaded-preload-scanner",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/html/semantics/scripting-1",
      "fast/dom/HTMLScriptElement",
      "fast/preloader"
    ],
    "args": ["--enable-features=ThreadedPreloadScanner,PrecompileInlineScripts",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "isolate-sandboxed-iframes",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [ "external/wpt/html/infrastructure/urls/terminology-0/" ],
    "args": ["--enable-features=IsolateSandboxedIframes",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "coop-restrict-properties",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [ "external/wpt/html/cross-origin-opener-policy/tentative/restrict-properties" ],
    "args": ["--enable-features=CoopRestrictProperties",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2024"
  },

  "These tests require the experimental speculative prefetch feature, and",
  "requires extra switches to enable content implementation of speculation",
  "rules prefetch.",
  {
    "prefix": "prefetch",
    "owners": ["jbroman@chromium.org", "liviutinta@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/speculation-rules/prefetch",
      "http/tests/inspector-protocol/prefetch"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-blink-features=SpeculationRulesFetchFromHeader,SpeculationRulesDocumentRules,NoVarySearchPrefetch,SpeculationRulesNoVarySearchHint,SpeculationRulesEagerness,SpeculationRulesDocumentRulesSelectorMatches",
      "--enable-features=PrefetchUseContentRefactor:block_until_head_eager_prefetch/true,PrefetchRedirects",
      "--bypass-prefetch-proxy-for-host=not-web-platform.test",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "prefetch-no-vary-search",
    "owners": ["jbroman@chromium.org", "liviutinta@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/speculation-rules/prefetch/no-vary-search",
      "wpt_internal/speculation-rules/prefetch/no-vary-search"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-blink-features=NoVarySearchPrefetch,SpeculationRulesNoVarySearchHint",
      "--enable-features=PrefetchUseContentRefactor:block_until_head_eager_prefetch/true",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "prefetch-reusable",
    "owners": ["hiroshige@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/speculation-rules/prefetch",
      "http/tests/inspector-protocol/prefetch"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-blink-features=SpeculationRulesFetchFromHeader,SpeculationRulesDocumentRules,NoVarySearchPrefetch,SpeculationRulesNoVarySearchHint,SpeculationRulesEagerness,SpeculationRulesDocumentRulesSelectorMatches",
      "--enable-features=PrefetchUseContentRefactor:block_until_head_eager_prefetch/true,PrefetchRedirects,PrefetchReusable",
      "--bypass-prefetch-proxy-for-host=not-web-platform.test",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "preload-devtools",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "http/tests/inspector-protocol/preload"
    ],
    "exclusive_tests": [
      "http/tests/inspector-protocol/preload/preloading-attempt-sources-updated.js"
    ],
    "args": [
      "--enable-blink-features=SpeculationRulesDocumentRules,SpeculationRulesDocumentRulesSelectorMatches",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "speculation-rules-prerender-target-hint",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/speculation-rules/prerender",
      "http/tests/inspector-protocol/prerender/prerender-failure-status-update-with-target-hint.js",
      "http/tests/inspector-protocol/prerender/prerender-status-update-with-target-hint.js"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-features=Prerender2InNewTab"
    ],
    "owners": ["nhiroki@chromium.org"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "cookie-reject-domain-non-ascii",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "http/tests/inspector-protocol/issues/cookie-domain-non-ascii.js",
      "external/wpt/cookies/domain/domain-attribute-idn-host.sub.https.html"
    ],
    "args": ["--enable-features=CookieDomainRejectNonASCII",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": ["johannhof@chromium.org"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "pending-beacon",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/pending-beacon",
      "wpt_internal/pending-beacon"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-features=PendingBeaconAPI:requires_origin_trial/false",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "pending-beacon-origin-trial",
    "platforms": ["Linux"],
    "bases": [
      "http/tests/origin_trials/webexposed/pending-beacon-origin-trial-interfaces.html"
    ],
    "args": ["--enable-features=PendingBeaconAPI:requires_origin_trial/true",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },

  "---------------------------- Close watchers -------------------------------",
  "TODO(https://crbug.com/1495208): These cannot be run in the normal web ",
  "platform tests environment because of",
  "https://github.com/web-platform-tests/wpt/issues/23364#issuecomment-1661452441.",
  "If we figure out how to properly reset user activation and history-action",
  "activation between tests, then we can remove ",
  "--reset-browsing-instance-between-tests and remove this virtual test suite.",
  {
    "prefix": "close-watcher",
    "owners": ["jarhar@chromium.org", "dom-dev@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/close-watcher"
    ],
    "exclusive_tests": [
      "external/wpt/close-watcher"
    ],
    "args": [
      "--reset-browsing-instance-between-tests",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "never"
  },
  {
    "prefix": "orb-v02",
    "platforms": ["Linux"],
    "args": ["--enable-features=OpaqueResponseBlockingV01,OpaqueResponseBlockingV02", "--disable-features=OpaqueResponseBlockingErrorsForAllFetches",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "bases": [
      "external/wpt/fetch/orb",
      "external/wpt/fetch/corb",
      "external/wpt/fetch/api",
      "external/wpt/fetch/nosniff"
    ],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "orb-errors-for-all-fetches",
    "platforms": ["Linux"],
    "args": ["--enable-features=OpaqueResponseBlockingV01,OpaqueResponseBlockingV02,OpaqueResponseBlockingErrorsForAllFetches",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "bases": [
      "external/wpt/fetch/orb",
      "external/wpt/fetch/corb"
    ],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "js-shared-memory",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["wpt_internal/js/shared_memory"],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=JavaScriptExperimentalSharedMemory",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "fedcm-login-status",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/credential-management/fedcm-login-status/"],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=FedCmIdpSigninStatusEnabled",
             "--enable-features=FencedFramesDefaultMode",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": ["cbiesinger@chromium.org", "npm@chromium.org"],
    "expires": "Mar 1, 2024"
  },
  {
    "prefix": "fedcm-multi-idp",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/credential-management/fedcm-multi-idp/"],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=FedCmMultipleIdentityProviders",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "scoped-custom-element-registry-disabled",
    "owners": ["xiaochengh@chromium.org", "dom-dev@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/custom-elements/scoped-registry"],
    "args": ["--disable-blink-features=ScopedCustomElementRegistry",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "js-resizable-arraybuffer",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/html/infrastructure/safe-passing-of-structured-data/cross-origin-transfer-resizable-arraybuffer.html",
      "external/wpt/html/infrastructure/safe-passing-of-structured-data/messagechannel.any.js",
      "external/wpt/html/infrastructure/safe-passing-of-structured-data/window-postmessage.window.js",
      "external/wpt/html/webappapis/structured-clone/structured-clone.any.js",
      "external/wpt/webidl/ecmascript-binding/allow-resizable.html",
      "external/wpt/workers/semantics/structured-clone/dedicated.html",
      "external/wpt/workers/semantics/structured-clone/shared.html"
    ],
    "exclusive_tests": [
      "external/wpt/html/infrastructure/safe-passing-of-structured-data/cross-origin-transfer-resizable-arraybuffer.html"
    ],
    "args": ["--js-flags=--harmony-rab-gsab",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },

  {
    "prefix": "css-masking-disabled",
    "owners": ["pdr@chromium.org, yotha@chromium.org, tcaptan@chromium.org"],
    "platforms": ["Linux", "Mac", "Win", "Fuchsia"],
    "bases": [ "external/wpt/css/css-masking"],
    "args": ["--disable-blink-features=CSSMaskingInterop"],
    "expires": "never"
  },

  "This individual test must be run separately from others, because it makes a",
  "huge memory allocation that often causes OOM if other tests have run in the",
  "same content_shell harness. For this reason this virtual test suite must",
  "never expire. Virtual test suites require command line args so pick one",
  "which is effectively a no-op.",
  {
    "prefix": "webgl-oversized-printing",
    "platforms": ["Linux", "Mac", "Win", "Fuchsia"],
    "bases": [
      "printing/webgl-oversized-printing.html"
    ],
    "args": ["--enable-webgl-developer-extensions",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "disable-solid-color-layers",
    "owners": ["wangxianzhu@chromium.org"],
    "platforms": ["Linux"],
    "bases": [
      "compositing",
      "paint/invalidation/compositing"
    ],
    "args": ["--disable-features=SolidColorLayers",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Oct 1, 2023"
  },
  {
    "prefix": "webcodecs-without-task-runner-with-custom-deleter",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/webcodecs"
    ],
    "args": ["--disable-features=UseBlinkSchedulerTaskRunnerWithCustomDeleter",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "option-label-only-in-no-quirks",
    "platforms": ["Linux"],
    "bases": [
      "fast/forms/select/HTMLOptionElement_label01.html",
      "fast/forms/select/HTMLOptionElement_label03.html",
      "fast/forms/select/HTMLOptionElement_label05.html",
      "fast/forms/select/HTMLOptionElement_label06.html",
      "fast/forms/select/HTMLOptionElement_label07.html"
    ],
    "args": ["--disable-features=OptionElementAlwaysUseLabel"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "date-input-inline-block-disabled",
    "owners": ["jarhar@chromium.org", "dom-dev@chromium.org"],
    "platforms": ["Linux"],
    "bases": [
      "external/wpt/html/rendering/non-replaced-elements/form-controls/resets.html",
      "fast/forms/suggested-value.html",
      "fast/forms/date/date-appearance-pseudo-elements.html",
      "fast/forms/month/month-appearance-pseudo-elements.html",
      "fast/forms/time/time-appearance-pseudo-elements.html",
      "fast/forms/week/week-appearance-pseudo-elements.html"
    ],
    "args": ["--disable-blink-features=DateInputInlineBlock",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Oct 1, 2023"
  },
  {
    "prefix": "allow-rtc-encoded-video-frame-set-metadata-all-fields",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "fast/peerconnection/RTCEncodedVideoFrame-set-metadata.html"
    ],
    "args": ["--enable-features=AllowRTCEncodedVideoFrameSetMetadataAllFields",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "disable-device-id-pointer-event",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["fast/events/pointerevents/device-id"],
    "args": [
      "--disable-blink-features=PointerEventDeviceId",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 1, 2023"
  },
  {
    "prefix": "webrtc-legacy-stats-trial-disabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "http/tests/inspector-protocol/issues/webrtc-stats-deprecation.js"
    ],
    "args": ["--disable-blink-features=RTCLegacyCallbackBasedGetStats",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Dec 21, 2023"
  },
  {
    "prefix": "scheduler-composition-disabled",
    "platforms": ["Linux"],
    "bases": [
      "external/wpt/scheduler/post-task-abort-reason.any.js",
      "external/wpt/scheduler/post-task-run-order.any.js",
      "external/wpt/scheduler/post-task-with-abort-signal.any.js",
      "external/wpt/scheduler/task-controller-abort-signal-and-priority.any.js",
      "external/wpt/scheduler/task-controller-setPriority1.any.js"
    ],
    "args": ["--disable-blink-features=AbortSignalComposition",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Dec 21, 2023"
  },
  {
    "prefix": "abort-signal-any-disabled",
    "platforms": ["Linux"],
    "bases": [
      "external/wpt/fetch/api/abort/general.any.js",
      "external/wpt/service-workers/cache-storage/cache-abort.https.any.js",
      "external/wpt/service-workers/cache-storage/cache-add.https.any.js"
    ],
    "args": ["--disable-blink-features=AbortSignalAny",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Dec 21, 2023"
  },
  {
    "prefix": "keepalive-in-browser-migration",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/background-fetch/",
      "external/wpt/beacon/",
      "external/wpt/content-security-policy/connect-src/connect-src-beacon-allowed.sub.html",
      "external/wpt/content-security-policy/connect-src/connect-src-beacon-blocked.sub.html",
      "external/wpt/content-security-policy/connect-src/connect-src-beacon-redirect-to-blocked.sub.html",
      "external/wpt/fetch/",
      "external/wpt/xhr/"
    ],
    "args": [
      "--enable-features=KeepAliveInBrowserMigration",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Dec 1, 2023"
  },
  {
    "prefix": "clone-for-branch2-disabled",
    "platforms": ["Linux"],
    "bases": ["external/wpt/fetch/api/response"],
    "args": ["--disable-features=ReadableStreamTeeCloneForBranch2",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Aug 1, 2023"
  },
  {
    "prefix": "main-thread-high-priority-image-loading",
    "platforms": ["Linux"],
    "bases": [
      "images/image-change-src.html"
    ],
    "args": [
      "--disable-features=MainThreadHighPriorityImageLoading",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Dec 1, 2023"
  },
  {
    "prefix": "longtask-from-loaf",
    "platforms": ["Linux"],
    "bases": ["external/wpt/longtask-timing"],
    "args": ["--enable-blink-features=LongTaskFromLongAnimationFrame",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Aug 1, 2023"
  },
  {
    "prefix": "netinfo-constant-type",
    "platforms": ["Linux"],
    "bases": ["netinfo/"],
    "args": [
      "--enable-blink-features=NetInfoConstantType",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Dec 1, 2023"
  },
  {
    "prefix": "soft-navigation-fp-fcp",
    "platforms": ["Linux"],
    "bases": [
      "external/wpt/soft-navigation-heuristics"
    ],
    "args": ["--enable-blink-features=SoftNavigationHeuristicsExposeFPAndFCP",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Dec 31, 2023"
  },
  {
    "prefix": "produce-compile-hints",
    "platforms": ["Linux"],
    "bases": [
      "external/wpt/fetch",
      "external/wpt/loading",
      "external/wpt/html/semantics/scripting-1"
    ],
    "args": ["--enable-features=ForceProduceCompileHints",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "never"
  },
  {
    "prefix": "static-routing-api",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/service-workers/service-worker/tentative/static-router",
      "http/tests/inspector-protocol/service-worker/tentative/static-router"
    ],
    "args": ["--enable-features=ServiceWorkerStaticRouter",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Jul 14, 2024",
    "owners": ["yyanagisawa@chromium.org", "sisidovski@chromium.org"]
  },
  {
    "prefix": "lcpp",
    "platforms": [
      "Linux",
      "Mac",
      "Win"
    ],
    "bases": [
      "http/tests/lcp_critical_path_predictor"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-features=LCPCriticalPathPredictor",
      "--disable-threaded-compositing", "--disable-threaded-animation"
    ],
    "expires": "Jul 10, 2024",
    "owners": [
      "chikamune@chromium.org",
      "kouhei@chromium.org"
    ]
  },
  {
    "prefix": "lcpp-fetched-fonts",
    "platforms": [
      "Linux",
      "Mac",
      "Win"
    ],
    "bases": [
      "http/tests/lcpp_fetched_fonts"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-features=LCPPFontURLPredictor"
    ],
    "expires": "Oct 16, 2024",
    "owners": [
      "yyanagisawa@chromium.org",
      "kouhei@chromium.org"
    ]
  },
  {
    "prefix": "lcp-script-observer",
    "platforms": [
      "Linux",
      "Mac",
      "Win"
    ],
    "bases": [
      "http/tests/lcp-script-observer"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-features=LCPScriptObserver"
    ],
    "expires": "Sep 10, 2024",
    "owners": [
      "alexnj@chromium.org",
      "kouhei@chromium.org"
    ]
  },
  {
    "prefix": "delay-async-when-lcp-in-html",
    "platforms": [
      "Linux",
      "Mac",
      "Win"
    ],
    "bases": [
      "http/tests/delay-async-when-lcp-in-html"
    ],
    "exclusive_tests": "ALL",
    "args": [
      "--enable-features=LCPCriticalPathPredictor:lcpp_recorded_lcp_element_types/all",
      "--enable-features=DelayAsyncScriptExecution:delay_async_exec_delay_type/till_first_lcp_candidate/delay_async_exec_when_lcp_found_in_html/true"
    ],
    "expires": "Sep 10, 2024",
    "owners": [
      "alexnj@chromium.org",
      "chikamune@chromium.org"
    ]
  },
  {
    "prefix": "deprecated-css-appearance-values-enabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "css-parser/deprecated-css-appearance-values.html",
      "css-parser/deprecated-css-appearance-values-warning/appearance-warning-cssom-usecounter.html",
      "css-parser/deprecated-css-appearance-values-warning/appearance-warning-usecounter.html",
      "css-parser/deprecated-css-appearance-values-warning/webkit-appearance-warning-cssom-usecounter.html",
      "css-parser/deprecated-css-appearance-values-warning/webkit-appearance-warning-usecounter.html",
      "http/tests/inspector-protocol/issues/css-appearance-non-standard-issue.js",
      "http/tests/inspector-protocol/issues/css-appearance-non-standard-cssom-issue.js",
      "http/tests/inspector-protocol/issues/css-webkit-appearance-non-standard-issue.js"
    ],
    "args": ["--enable-blink-features=NonStandardAppearanceValuesHighUsage",
             "--enable-blink-features=NonStandardAppearanceValuesLowUsage",
             "--enable-blink-features=NonStandardAppearanceValueSliderVertical",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": ["dizhangg@chromium.org"],
    "expires": "Dec 21, 2023"
  },
  {
    "prefix": "vertical-form-controls-disabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/css/css-writing-modes/forms/progress-appearance-native-vertical.optional.html",
      "external/wpt/css/css-writing-modes/forms/meter-appearance-native-vertical.optional.html",
      "external/wpt/css/css-writing-modes/forms/button-appearance-native-vertical.optional.html",
      "external/wpt/css/css-writing-modes/forms/select-multiple-appearance-native-vlr.optional.html",
      "external/wpt/css/css-writing-modes/forms/color-input-appearance-native-vertical.optional.html",
      "external/wpt/css/css-writing-modes/forms/range-input-appearance-native-vertical.optional.html",
      "external/wpt/css/css-writing-modes/forms/date-input-appearance-native-vertical.optional.html",
      "external/wpt/css/css-flexbox/flex-item-compressible-002.html"
    ],
    "args": ["--disable-features=FormControlsVerticalWritingModeSupport",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": ["dizhangg@chromium.org"],
    "expires": "Dec 21, 2023"
  },
  {
    "prefix": "vertical-form-controls-text-disabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/css/css-writing-modes/forms/textarea-appearance-native-vlr.optional.html",
      "external/wpt/css/css-writing-modes/forms/text-input-block-size.optional.html",
      "external/wpt/css/css-flexbox/flex-item-compressible-002.html"
    ],
    "args": ["--disable-features=FormControlsVerticalWritingModeTextSupport",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "owners": ["dizhangg@chromium.org"],
    "expires": "Dec 21, 2023"
  },
  {
    "prefix": "url-non-special",
    "platforms": ["Linux"],
    "bases": ["external/wpt/url"],
    "args": ["--enable-features=StandardCompliantNonSpecialSchemeURLParsing"],
    "owners": ["hayato@chromium.org"],
    "expires": "Jul 1, 2024"
  },
  {
    "prefix": "cookie-deprecation-label",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/cookie-deprecation-label"
    ],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=CookieDeprecationFacilitatedTesting:label/label_test",
             "--disable-threaded-compositing", "--disable-threaded-animation"],
    "expires": "Dec 31, 2023"
  },
  {
    "prefix": "capture-blocking-details",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "http/tests/inspector-protocol/bfcache/report-back-forward-cache-status-details-captured.js"
    ],
    "args": ["--enable-features=RegisterJSSourceLocationBlockingBFCache"],
    "expires": "Feb 1, 2024"
  },
  {
    "prefix": "saa-beyond-cookies-disabled",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/storage-access-api",
      "wpt_internal/storage-access-api"
    ],
    "args": ["--disable-blink-features=StorageAccessAPIBeyondCookies"],
    "expires": "Jul 1, 2024",
    "owners": ["arichiv@chromium.org"]
  },
  {
    "prefix": "permission-element",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": ["external/wpt/html/semantics/permission-element"],
    "exclusive_tests": "ALL",
    "args": ["--enable-features=PermissionElement"],
    "owners": ["permissions-core@google.com"],
    "expires": "Jul 1, 2024"
  },
  "The GenericSensorExtraClasses feature is controlled by a flag, which has ",
  "an expiration date. |expires| below is set to 'never' to avoid having to ",
  "manage the expiration date in two locations.",
  "",
  "N.B. skip_base_tests is needed only because of https://crbug.com/1471996",
  {
    "prefix": "generic-sensor-extra-classes",
    "owners": ["raphael.kubo.da.costa@intel.com", "reillyg@chromium.org"],
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/ambient-light",
      "external/wpt/magnetometer",
      "wpt_internal/generic-sensor/reference-frame-tests.https.window.js"
    ],
    "exclusive_tests": "ALL",
    "skip_base_tests": [
      "wpt_internal/generic-sensor/reference-frame-tests.https.window.html"
    ],
    "args": ["--enable-features=GenericSensorExtraClasses"],
    "expires": "never"
  },
  {
    "prefix": "webnn-service-enabled",
    "platforms": ["Win"],
    "bases": [
      "external/wpt/webnn/gpu"
    ],
    "exclusive_tests": "ALL",
    "args": ["--use-gpu-in-tests", "--enable-features=MachineLearningNeuralNetworkService"],
    "expires": "Jun 1, 2024",
    "owners": ["rafael.cintron@microsoft.com", "ningxin.hu@intel.com", "kbr@chromium.org"]
  },
  {
    "prefix": "deprecate-unload",
    "platforms": ["Linux", "Mac", "Win"],
    "bases": [
      "external/wpt/permissions-policy/experimental-features/unload-allowed-by-default.tentative.window.js",
      "external/wpt/permissions-policy/experimental-features/unload-disallowed-subframe.tentative.window.js"
     ],
    "args": ["--enable-features=DeprecateUnload"],
    "expires": "Jun 1, 2024",
    "owners": ["fergal@chromium.org", "rakina@chromium.org"]
  }
]