[
  {
    "prefix": "color_space",
    "base": "fast/canvas/color-space",
    "args": ["--enable-blink-features=ColorCanvasExtensions"]
  },
  {
    "prefix": "gpu",
    "base": "fast/canvas",
    "args": ["--enable-accelerated-2d-canvas",
             "--disable-display-list-2d-canvas"]
  },
  {
    "prefix": "display_list_2d_canvas",
    "base": "fast/canvas",
    "args": ["--force-display-list-2d-canvas"]
  },
  {
    "prefix": "threaded",
    "base": "fast/idleToBlob",
    "args": ["--enable-threaded-compositing"]
  },
  {
    "prefix": "threaded",
    "base": "compositing/visibility",
    "args": ["--enable-threaded-compositing"]
  },
  {
    "prefix": "threaded",
    "base": "fast/compositorworker",
    "args": ["--enable-threaded-compositing"]
  },
  {
    "prefix": "threaded",
    "base": "http/tests/worklet",
    "args": ["--enable-threaded-compositing"]
  },
  {
    "prefix": "threaded",
    "base": "compositing/webgl",
    "args": ["--enable-threaded-compositing"]
  },
  {
    "prefix": "prefer_compositing_to_lcd_text",
    "base": "compositing/overflow",
    "args": ["--enable-prefer-compositing-to-lcd-text"]
  },
  {
    "prefix": "prefer_compositing_to_lcd_text",
    "base": "scrollbars",
    "args": ["--enable-prefer-compositing-to-lcd-text"]
  },
  {
    "prefix": "threaded",
    "base": "animations",
    "args": ["--enable-threaded-compositing",
             "--disable-composited-antialiasing"]
  },
  {
    "prefix": "threaded",
    "base": "transitions",
    "args": ["--enable-threaded-compositing"]
  },
  {
    "prefix": "threaded",
    "base": "fast/scroll-behavior",
    "args": ["--enable-threaded-compositing",
             "--enable-prefer-compositing-to-lcd-text"]
  },
  {
    "prefix": "gpu-rasterization",
    "base": "images",
    "args": ["--force-gpu-rasterization"]
  },
  {
    "prefix": "exotic-color-space",
    "base": "images",
    "args": ["--force-color-profile=color-spin-gamma24"]
  },
  {
    "prefix": "stable",
    "base": "webexposed",
    "args": ["--stable-release-mode"]
  },
  {
    "prefix": "stable",
    "base": "http/tests/serviceworker/webexposed",
    "args": ["--stable-release-mode"]
  },
  {
    "prefix": "stable",
    "base": "http/tests/navigation",
    "args": ["--stable-release-mode"]
  },
  {
    "prefix": "stable",
    "base": "http/tests/sendbeacon",
    "args": ["--stable-release-mode"]
  },
  {
    "prefix": "stable",
    "base": "animations-unprefixed",
    "args": ["--stable-release-mode"]
  },
  {
    "prefix": "stable",
    "base": "media/stable",
    "args": ["--stable-release-mode"]
  },
  {
    "prefix": "stable",
    "base": "svg/transforms/stable",
    "args": ["--stable-release-mode"]
  },
  {
    "prefix": "feature-policy-permissions",
    "base": "http/tests/webmidi",
    "args": ["--enable-features=UseFeaturePolicyForPermissions"]
  },
  {
    "prefix": "feature-policy-permissions",
    "base": "http/tests/geolocation-api",
    "args": ["--enable-features=UseFeaturePolicyForPermissions"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "external/wpt/html/browsers/offline/appcache/workers",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "external/wpt/service-workers",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "http/tests/fetch/chromium",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "http/tests/fetch/workers",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "http/tests/inspector/network",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "http/tests/inspector/service-workers",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "http/tests/misc",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "http/tests/security/mixedContent",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "http/tests/security/cookies",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "http/tests/serviceworker",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "http/tests/xmlhttprequest/workers",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "off-main-thread-fetch",
    "base": "http/tests/workers",
    "args": ["--enable-features=OffMainThreadFetch"]
  },
  {
    "prefix": "origin-trials-runtimeflags-disabled",
    "base": "http/tests/origin_trials/webexposed",
    "args": ["--disable-origin-trial-controlled-blink-features"]
  },
  {
    "prefix": "android",
    "base": "fullscreen",
    "args": ["--enable-features=OverlayScrollbar", "--enable-threaded-compositing",
             "--enable-fixed-position-compositing", "--enable-prefer-compositing-to-lcd-text",
             "--enable-composited-scrolling-for-frames", "--enable-gesture-tap-highlight", "--enable-pinch",
             "--force-overlay-fullscreen-video", "--enable-overscroll-notifications",
             "--enable-viewport", "--disable-canvas-aa", "--disable-composited-antialiasing"]
  },
  {
    "prefix": "android",
    "base": "fast/rootscroller",
    "args": ["--enable-features=OverlayScrollbar", "--enable-threaded-compositing",
             "--enable-fixed-position-compositing", "--enable-prefer-compositing-to-lcd-text",
             "--enable-composited-scrolling-for-frames", "--enable-gesture-tap-highlight", "--enable-pinch",
             "--force-overlay-fullscreen-video", "--enable-overscroll-notifications",
             "--enable-viewport", "--disable-canvas-aa", "--disable-composited-antialiasing"]
  },
  {
    "prefix": "media-gpu-accelerated",
    "base": "http/tests/media/media-source",
    "args": ["--use-gpu-in-tests"]
  },
  {
    "prefix": "media-gpu-accelerated",
    "base": "media",
    "args": ["--use-gpu-in-tests"]
  },
  {
    "prefix": "android",
    "base": "media/mediadocument",
    "args": ["--enable-features=MediaDocumentDownloadButton"]
  },
  {
    "prefix": "stable",
    "base": "fast/css3-text/css3-text-decoration/stable",
    "args": ["--stable-release-mode"]
  },
  {
    "prefix": "stable",
    "base": "web-animations-api",
    "args": ["--stable-release-mode"]
  },
  {
    "prefix": "without-smil",
    "base": "svg/animations/exposed",
    "args": ["--disable-blink-features=SMIL"]
  },
  {
    "prefix": "linux-subpixel",
    "base": "platform/linux/fast/text/subpixel",
    "args": ["--enable-webkit-text-subpixel-positioning"]
  },
  {
    "prefix": "threaded",
    "base": "printing",
    "args": ["--enable-threaded-compositing"]
  },
  {
    "prefix": "rootlayerscrolls",
    "base": "scrollingcoordinator",
    "args": ["--root-layer-scrolls"]
  },
  {
    "prefix": "rootlayerscrolls",
    "base": "fast/scrolling",
    "args": ["--root-layer-scrolls"]
  },
  {
    "prefix": "rootlayerscrolls",
    "base": "fast/rootscroller",
    "args": ["--root-layer-scrolls"]
  },
  {
    "prefix": "rootlayerscrolls",
    "base": "fast/history/scroll-restoration",
    "args": ["--root-layer-scrolls"]
  },
  {
    "prefix": "rootlayerscrolls",
    "base": "scrollbars",
    "args": ["--root-layer-scrolls"]
  },
  {
    "prefix": "scroll_customization",
    "base": "fast/scroll-behavior",
    "args": ["--enable-blink-features=ScrollCustomization"]
  },
  {
    "prefix": "scroll_customization",
    "base": "fast/scrolling",
    "args": ["--enable-blink-features=ScrollCustomization"]
  },
  {
    "prefix": "scroll_customization",
    "base": "fast/events/touch",
    "args": ["--enable-blink-features=ScrollCustomization"]
  },
  {
    "prefix": "mse-1mb-buffers",
    "base": "http/tests/media/media-source/stream_memory_tests",
    "args": ["--mse-audio-buffer-size-limit=1048576",
             "--mse-video-buffer-size-limit=1048576"]
  },
  {
    "prefix": "threaded",
    "base": "fast/idle-callback",
    "args": ["--enable-threaded-compositing"]
  },
  {
    "prefix": "threaded",
    "base": "inspector/tracing",
    "args": ["--enable-threaded-compositing"]
  },
  {
    "prefix": "spv2",
    "base": "compositing",
    "args": ["--enable-slimming-paint-v2"]
  },
  {
    "prefix": "spv2",
    "base": "fast/block",
    "args": ["--enable-slimming-paint-v2"]
  },
  {
    "prefix": "spv2",
    "base": "fast/borders",
    "args": ["--enable-slimming-paint-v2"]
  },
  {
    "prefix": "spv2",
    "base": "fast/clip",
    "args": ["--enable-slimming-paint-v2"]
  },
  {
    "prefix": "spv2",
    "base": "fast/css",
    "args": ["--enable-slimming-paint-v2"]
  },
  {
    "prefix": "spv2",
    "base": "fast/overflow",
    "args": ["--enable-slimming-paint-v2"]
  },
  {
    "prefix": "spv2",
    "base": "paint",
    "args": ["--enable-slimming-paint-v2"]
  },
  {
    "prefix": "spv2",
    "base": "svg",
    "args": ["--enable-slimming-paint-v2"]
  },
  {
    "prefix": "scalefactor200",
    "base": "fast/hidpi/static",
    "args": ["--force-device-scale-factor=2"]
  },
  {
    "prefix": "scalefactor150",
    "base": "fast/hidpi/static",
    "args": ["--force-device-scale-factor=1.5"]
  },
  {
    "prefix": "scalefactor200withzoom",
    "base": "fast/hidpi/static",
    "args": ["--force-device-scale-factor=2", "--enable-use-zoom-for-dsf"]
  },
  {
    "prefix": "wheelscrolllatching",
    "base": "fast/events/wheel",
    "args": ["--enable-features=TouchpadAndWheelScrollLatching"]
  },
  {
    "prefix": "wheelscrolllatching",
    "base": "fast/compositor-wheel-scroll-latching",
    "args": ["--enable-features=TouchpadAndWheelScrollLatching",
             "--enable-threaded-compositing",
             "--disable-smooth-scrolling"]
  },
  {
    "prefix": "mojo-loading",
    "base": "webexposed",
    "args": ["--enable-blink-features=LoadingWithMojo"]
  },
  {
    "prefix": "mojo-loading",
    "base": "http/tests",
    "args": ["--enable-blink-features=LoadingWithMojo"]
  },
  {
    "prefix": "mojo-loading",
    "base": "css1",
    "args": ["--enable-blink-features=LoadingWithMojo"]
  },
  {
    "prefix": "mojo-loading",
    "base": "fast/table",
    "args": ["--enable-blink-features=LoadingWithMojo"]
  },
  {
    "prefix": "scalefactor150",
    "base": "fast/events/synthetic-events",
    "args": ["--force-device-scale-factor=1.5"]
  },
  {
    "prefix": "enable_wasm",
    "base": "http/tests/wasm",
    "args": ["--enable-features=WebAssembly"]
  },
  {
    "prefix": "enable_wasm",
    "base": "external/wpt/wasm",
    "args": ["--enable-features=WebAssembly"]
  },
  {
    "prefix": "enable_wasm_streaming",
    "base": "http/tests/wasm_streaming",
    "args": ["--enable-features=WebAssemblyStreaming"]
  },
  {
    "prefix": "enable_asmjs",
    "base": "http/tests/asmjs",
    "args": ["--enable-features=AsmJsToWebAssembly"]
  },
  {
    "prefix": "service-worker-navigation-preload-disabled",
    "base": "webexposed",
    "args": ["--disable-features=ServiceWorkerNavigationPreload"]
  },
  {
    "prefix": "service-worker-navigation-preload-disabled",
    "base": "http/tests/serviceworker/webexposed",
    "args": ["--disable-features=ServiceWorkerNavigationPreload"]
  },
  {
    "prefix": "service-worker-script-streaming",
    "base": "external/wpt/service-workers",
    "args": ["--enable-features=ServiceWorkerScriptStreaming"]
  },
  {
    "prefix": "service-worker-script-streaming",
    "base": "http/tests/serviceworker",
    "args": ["--enable-features=ServiceWorkerScriptStreaming"]
  },
  {
    "prefix": "service-worker-script-streaming",
    "base": "http/tests/fetch/serviceworker",
    "args": ["--enable-features=ServiceWorkerScriptStreaming"]
  },
  {
    "prefix": "service-worker-script-streaming",
    "base": "http/tests/fetch/serviceworker-proxied",
    "args": ["--enable-features=ServiceWorkerScriptStreaming"]
  },
  {
    "prefix": "layout_ng",
    "base": "fast/block/basic",
    "args": ["--enable-blink-features=LayoutNG"]
  },
  {
    "prefix": "layout_ng",
    "base": "fast/block/margin-collapse",
    "args": ["--enable-blink-features=LayoutNG"]
  },
  {
    "prefix": "layout_ng",
    "base": "fast/block/float",
    "args": ["--enable-blink-features=LayoutNG"]
  },
  {
    "prefix": "layout_ng",
    "base": "external/wpt/css/CSS2/linebox",
    "args": ["--enable-blink-features=LayoutNG"]
  },
  {
    "prefix": "layout_ng",
    "base": "external/wpt/css/CSS2/normal-flow",
    "args": ["--enable-blink-features=LayoutNG"]
  },
  {
    "prefix": "layout_ng",
    "base": "external/wpt/css/CSS2/abspos",
    "args": ["--enable-blink-features=LayoutNG"]
  },
  {
    "prefix": "layout_ng",
    "base": "external/wpt/css/CSS2/positioning",
    "args": ["--enable-blink-features=LayoutNG"]
  },
  {
    "prefix": "layout_ng",
    "base": "external/wpt/css/CSS2/floats",
    "args": ["--enable-blink-features=LayoutNG"]
  },
  {
    "prefix": "layout_ng",
    "base": "external/wpt/css/CSS2/floats-clear",
    "args": ["--enable-blink-features=LayoutNG"]
  },
  {
    "prefix": "layout_ng",
    "base": "overflow",
    "args": ["--enable-blink-features=LayoutNG"]
  },
  {
    "prefix": "feature-policy",
    "base": "http/tests/feature-policy",
    "args": ["--enable-blink-features=FeaturePolicy"]
  },
  {
    "prefix": "feature-policy-experimental-features",
    "base": "http/tests/feature-policy-experimental-features",
    "args": ["--enable-blink-features=FeaturePolicy,FeaturePolicyExperimentalFeatures"]
  },
  {
    "prefix": "mojo-localstorage",
    "base": "external/wpt/webstorage",
    "args": ["--disable-mojo-local-storage"]
  },
  {
    "prefix": "mojo-localstorage",
    "base": "storage/domstorage/localstorage",
    "args": ["--disable-mojo-local-storage"]
  },
  {
    "prefix": "print_browser",
    "base": "print_testharness",
    "args": ["--enable-print-browser"]
  },
  {
    "prefix": "new-remote-playback-pipeline",
    "base": "media/remoteplayback",
    "args": ["--enable-features=NewRemotePlaybackPipeline"]
  },
  {
    "prefix": "new-remote-playback-pipeline",
    "base": "media/controls",
    "args": ["--enable-features=NewRemotePlaybackPipeline"]
  },
  {
    "prefix": "new-remote-playback-pipeline",
    "base": "external/wpt/remote-playback",
    "args": ["--enable-features=NewRemotePlaybackPipeline"]
  },
  {
    "prefix": "new-remote-playback-pipeline",
    "base": "http/tests/media/controls",
    "args": ["--enable-features=NewRemotePlaybackPipeline"]
  },
  {
    "prefix": "high-contrast-mode",
    "base": "paint/high-contrast-mode/image-filter-all",
    "args": ["--blink-settings=highContrastMode=3,highContrastImagePolicy=0"]
  },
  {
    "prefix": "high-contrast-mode",
    "base": "paint/high-contrast-mode/image-filter-none",
    "args": ["--blink-settings=highContrastMode=3,highContrastImagePolicy=1"]
  },
  {
    "prefix": "outofblink-cors",
    "base": "webexposed",
    "args": ["--enable-blink-features=OutOfBlinkCORS"]
  },
  {
    "prefix": "presentation",
    "base": "receiver",
    "args": ["--force-presentation-receiver-for-testing"]
  }
]