WPT import https://crrev.com/c/924903 introduced new failures in external/wpt/streams:

List of new failures:
[ Mac-mac10.12 ] external/wpt/streams/piping/error-propagation-forward.html new failing tests: https://crrev.com/c/924903/4/third_party/WebKit/LayoutTests/platform/mac-mac10.12/external/wpt/streams/piping/error-propagation-forward-expected.txt
[ Win ] external/wpt/streams/piping/error-propagation-forward.html new failing tests: https://crrev.com/c/924903/4/third_party/WebKit/LayoutTests/platform/win/external/wpt/streams/piping/error-propagation-forward-expected.txt
[ Mac-mac10.12 ] external/wpt/streams/piping/error-propagation-forward.dedicatedworker.html new failing tests: https://crrev.com/c/924903/4/third_party/WebKit/LayoutTests/platform/mac-mac10.12/external/wpt/streams/piping/error-propagation-forward.dedicatedworker-expected.txt
[ Win ] external/wpt/streams/piping/error-propagation-forward.dedicatedworker.html new failing tests: https://crrev.com/c/924903/4/third_party/WebKit/LayoutTests/platform/win/external/wpt/streams/piping/error-propagation-forward.dedicatedworker-expected.txt
[ Mac-mac10.12 ] external/wpt/streams/piping/error-propagation-forward.sharedworker.html new failing tests: https://crrev.com/c/924903/4/third_party/WebKit/LayoutTests/platform/mac-mac10.12/external/wpt/streams/piping/error-propagation-forward.sharedworker-expected.txt
[ Win ] external/wpt/streams/piping/error-propagation-forward.sharedworker.html new failing tests: https://crrev.com/c/924903/4/third_party/WebKit/LayoutTests/platform/win/external/wpt/streams/piping/error-propagation-forward.sharedworker-expected.txt
[ Mac-mac10.12 ] external/wpt/streams/piping/error-propagation-forward.serviceworker.https.html new failing tests: https://crrev.com/c/924903/4/third_party/WebKit/LayoutTests/platform/mac-mac10.12/external/wpt/streams/piping/error-propagation-forward.serviceworker.https-expected.txt
[ Win ] external/wpt/streams/piping/error-propagation-forward.serviceworker.https.html new failing tests: https://crrev.com/c/924903/4/third_party/WebKit/LayoutTests/platform/win/external/wpt/streams/piping/error-propagation-forward.serviceworker.https-expected.txt

This import contains upstream changes from 826c76d8d330c11a1b4ce078b918a0c6b4aaf5c1 to 0eaf7631a0522afa4b5901265c8370ce22ba9cac:
Fix detached-context.https.html to not timeout due to promise reaction callbacks not firing for detached globals. bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1436763 gecko-commit: c8d461ef1437641ae7d4ea1d21e1e60cd62910b0 gecko-integration-branch: central gecko-reviewers: catalinb: https://github.com/w3c/web-platform-tests/commit/0eaf7631a0522afa4b5901265c8370ce22ba9cac
Refactor tests for sandbox iframes controlled by service worker: https://github.com/w3c/web-platform-tests/commit/63a5a6d7c789f004f09e5cbb801b49cfb4426989
Stop reusing MemoryCache entries for requests with a different source origin.: https://github.com/w3c/web-platform-tests/commit/e6bda363d5bc9722b326631c36333d41101c0cb3
Set WasFetchedViaServiceWorker for multipart image response: https://github.com/w3c/web-platform-tests/commit/75c962d7c542f3a6c6e43bcf18a4bf67a16f86cf
ReadableStream: Add a test that all queued writes complete on error (#5636): https://github.com/w3c/web-platform-tests/commit/ee7ca4fb8371000d2429a99002d1ad71275d5cde [affecting this directory]
minor typo fix: https://github.com/w3c/web-platform-tests/commit/2f8a42135179dcd2bf3260d88501e9a4dd3012f1
Fix selection{Start,End} test: https://github.com/w3c/web-platform-tests/commit/08dd5d8de9c165badabf9f18b5be21a561d8213a
[css-layout-api] Implement the guts of the javascript layout runner.: https://github.com/w3c/web-platform-tests/commit/1a2e430c6fd35c111ead0d5a0e9afbe874e7c1a2
Correct integration with Sauce Labs service (#9484): https://github.com/w3c/web-platform-tests/commit/e56563d2b1e8bd225bf4c8b4682cbd12beeae1a7
wptrunner: Fix regression in config, interpreter (#9480): https://github.com/w3c/web-platform-tests/commit/cb2d75fd13182ab3bdd7189dafe2ff7bbf4acd56
Merge pull request #9561 from w3c/sync_54fa770d8e356a5f4fa7861f2103b6a7b9175eb2: https://github.com/w3c/web-platform-tests/commit/256f5784994a108de0ec043602254674a8122747
Implement element.innerText setter: https://github.com/w3c/web-platform-tests/commit/54fa770d8e356a5f4fa7861f2103b6a7b9175eb2
Fix timeouts in WPT AudioParam tests: https://github.com/w3c/web-platform-tests/commit/81ada4212ece1e2f5c6cc560d6b2f45593679e93
Test the serialization of the font shorthand. bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1436031 gecko-commit: 7806af854343c043a2645a4034fdc7812f65daad gecko-integration-branch: central gecko-reviewers: xidorn: https://github.com/w3c/web-platform-tests/commit/b6df67b31d90ae3c007efc47a52e41901bf25e36
Add navigator.webdriver attribute.: https://github.com/w3c/web-platform-tests/commit/00869007356d37972ad946c86c530eafc19c7b8c
Test that click events are properly dispatched to non-disabled form controls in presence of dynamic changes.: https://github.com/w3c/web-platform-tests/commit/b7bcc2ee447b163456488d0e26e746d5fe6b9283
[LayoutNG] Don't add zero-width floats to the exclusion space.: https://github.com/w3c/web-platform-tests/commit/ae06fa4ce5d170f7f34e979b014315e318344ec4
service worker: Disallow interception for EMBED and OBJECT requests.: https://github.com/w3c/web-platform-tests/commit/e7607dad61b547e88d1f06a67b1514a3242600ec
[css-typed-om] Make StylePropertyMap.set work with calcs.: https://github.com/w3c/web-platform-tests/commit/b52a7a29208647f209f06ac2e6321987023c196c
Add tests for Animation.updatePlaybackRate;: https://github.com/w3c/web-platform-tests/commit/e60dd1470b69fb3c76135c57cb5ab80aca4354e1
Further divide up finishing tests; bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1436659 gecko-commit: a1a5840a6bb53e305ba02bcbeb215659342d0edb gecko-integration-branch: autoland gecko-reviewers: hiro: https://github.com/w3c/web-platform-tests/commit/454b4dbd21f8f5341ec1a02fdb5e9ab16cb79ad0
Tidy up tests for "finishing an animation";: https://github.com/w3c/web-platform-tests/commit/42c27bb938fb91414a13628e9e6c651f748a5f3c
Move finishing tests to timing-model;: https://github.com/w3c/web-platform-tests/commit/68544c4451651916a24b762a185d68c4bc579ff1
Simplify playback rate setting test;: https://github.com/w3c/web-platform-tests/commit/496f9b98caf19b589ca5f04d235c395f654eae2b
Move playback rate test to timing-model;: https://github.com/w3c/web-platform-tests/commit/8616b71a6fd1d5aafd1d207ce49ddfd6dd9559f7
Use async/await in timing-model/animations tests;: https://github.com/w3c/web-platform-tests/commit/78c51f736a22c330dcceac70be98b48d65dda5ac
Rename tests in timing-model/animations to match spec section titles;: https://github.com/w3c/web-platform-tests/commit/4d81f72949c33b312ea1a0cc35636a2bd8c9cc9a
Add initial test set for Accessible Name and Description Computation 1.1 (#9540): https://github.com/w3c/web-platform-tests/commit/2b4cdad36bd267e39565ebaab5982b9b4c482e53
Add tests for the breaking of a multicolumn across columns, including backgrounds and column rules. (#9527): https://github.com/w3c/web-platform-tests/commit/d04c0d50dbbf7752c27957005a5a659701b781ad
Merge pull request #9541 from w3c/sync_af66d6bb941ce9abb4fbe7af6d37eac0becae55f: https://github.com/w3c/web-platform-tests/commit/54128af2d8c4c677207dd80a66019ef7a9434004
Fix an error in executorservo.py: https://github.com/w3c/web-platform-tests/commit/af66d6bb941ce9abb4fbe7af6d37eac0becae55f
Reftest for handling important when there is an animation.: https://github.com/w3c/web-platform-tests/commit/5ee47da05ffc366a887788ccdc3f7a0673c35953
[USVString] Apply USVString into RTCDataChannel.send: https://github.com/w3c/web-platform-tests/commit/1a3951e267e61077ca566e9872c9abeb229d5751
[LayoutNG] Allow zero-width layout opportunities.: https://github.com/w3c/web-platform-tests/commit/e2b2513a9ab764bcec7ccf616a35835d13020e32
Updating Server creation for localhost (#9202): https://github.com/w3c/web-platform-tests/commit/09ca41d71aab5d5640804b34e5165f291259f112
Fix #8806: Allow about:blank as reference URL (#9421): https://github.com/w3c/web-platform-tests/commit/c23fdbd54d77d54d7a0a51813caa91897f4d6b0d
Add @drott (#9525): https://github.com/w3c/web-platform-tests/commit/cf12c2761f77d01223b94bc2ddc7eae49ccac59d
Make WPT webrtc/simplecall.html pass: https://github.com/w3c/web-platform-tests/commit/49d8cd27466bcd293f86a5758f21fcd23a97f196
[css-typed-om] Move inline style map layout tests to WPT.: https://github.com/w3c/web-platform-tests/commit/e4730a5e002aadca9605485aec9ccb4c122f15de
Merge pull request #9448 from kaixinjxq/Sensor_accelerometer: https://github.com/w3c/web-platform-tests/commit/7f24ed86c4a4d35090f9a12c80656f16b2932a3a
Merge pull request #9449 from kaixinjxq/Sensor_gyroscope: https://github.com/w3c/web-platform-tests/commit/b16e8405a1e2985836e987f1080d77f558ae1d27
Merge pull request #9450 from kaixinjxq/Sensor_magnetometer: https://github.com/w3c/web-platform-tests/commit/38fe6c697693583f269b01be67df6f83523362ff
Merge pull request #9451 from kaixinjxq/Sensor_orientation: https://github.com/w3c/web-platform-tests/commit/5c67a16ad3319699f8a297284939ed37269f41d2
CSS2 tests were only correct if the default font has two weights. (#9533): https://github.com/w3c/web-platform-tests/commit/30c492f9078d50bff86b4459e78d31cc0d7bf47b
Add test for empty URL behaviour (#9534): https://github.com/w3c/web-platform-tests/commit/9b0130bf3c690ae1d408b6e1bebc6568ce99b915
CORB: WPT tests for <link rel="stylesheet" href="..."> tag interactions.: https://github.com/w3c/web-platform-tests/commit/c42893ed572b4b7e46d79cb527ba7dafd2adb15e
CORB: WPT tests for <script> tag interactions.: https://github.com/w3c/web-platform-tests/commit/6be7f242bbcec40802cda8f670bbec31570dd077
CORB: WPT tests for <img> tag interactions.: https://github.com/w3c/web-platform-tests/commit/56590a3617256f6ff39672dceca45f1c0ae53993
Merge pull request #9408 from ewilligers/line-pathLength: https://github.com/w3c/web-platform-tests/commit/9881b7aa68ce82fc574b75bc64f690f11ca3681d
Add test for wrappable content that has flex:none (#9518): https://github.com/w3c/web-platform-tests/commit/a02389e2cc84576b8aa35bff9658f6db39003ed8
Merge pull request #9529 from w3c/sync_68b6e3eb89eac82773e525994ec6463f840f81d7: https://github.com/w3c/web-platform-tests/commit/35f53ee56c368eae6b5dfd41618c87a29e89e5db
Merge pull request #9528 from w3c/sync_d202d15fc2c520204d44bd8cc3ae9d0a8a775758: https://github.com/w3c/web-platform-tests/commit/e1eddc69e85e0648bb061dc52c13194bdd233989
Adding tests with DRY coding technique: https://github.com/w3c/web-platform-tests/commit/68b6e3eb89eac82773e525994ec6463f840f81d7
Implement element.innerText getter: https://github.com/w3c/web-platform-tests/commit/d202d15fc2c520204d44bd8cc3ae9d0a8a775758
Extend font-feature-settings-serialization-001.html to cover bug 1434724.: https://github.com/w3c/web-platform-tests/commit/6a33114b2b9c639b182d31be4ec128df3607ac23
Merge pull request #9397 from faceless2/bfo-css-fonts-3-fontfeature: https://github.com/w3c/web-platform-tests/commit/840362217deb3f9b82fe18a619d0bf21ddc55781
Check that fetch request signal following works correctly: https://github.com/w3c/web-platform-tests/commit/e151f898bfde2bfb518206008a911577be8a5a68
Support MediaStreamTrack.getCapabilities() for echoCancellation and deviceId: https://github.com/w3c/web-platform-tests/commit/08bc228af02856e05fc4263044943df751bbc114
[css-typed-om] Move inline style map layout tests to WPT.: https://github.com/w3c/web-platform-tests/commit/9e98749811573be88146eaeac56732d445f769fd
Setting "" as <track> 'src' should fail the first time: https://github.com/w3c/web-platform-tests/commit/7bdac4aedb60223226e5941b7cc8ebadfcc9885b
service worker: Add tests for cross-origin WebVTT responses with redirects.: https://github.com/w3c/web-platform-tests/commit/c26ee506ae9d6bac00f3b01609f107a483883ece
[css-typed-om] Move inline style map layout tests to WPT.: https://github.com/w3c/web-platform-tests/commit/783faf5a3f8803a1a1f4f30345f67de333a6d72c
Fetch API: Don't DCHECK on a 302 response with a Location header with empty value.: https://github.com/w3c/web-platform-tests/commit/e75788501733a0801eec374c19f8cdfbccd9c09d
[custom-elements] Add HTML serialization tests: https://github.com/w3c/web-platform-tests/commit/d0114efdde520f9aa003ce42c85ef134f01ad691
[css-typed-om] Refactor the per-property test harness.: https://github.com/w3c/web-platform-tests/commit/5479ebec26b46fa4ecf02698863c3ea1d64c3126
[custom-elements] Some fixes for "is" attribute behavior changes: https://github.com/w3c/web-platform-tests/commit/1e4fe87a7f01c0b5c614c8f601ffa68b4a00662a
[Picture-in-Picture] Add PictureInPictureWindow width and height stubs: https://github.com/w3c/web-platform-tests/commit/e9ffe0be14f695ad5fb0aa104bbddbcc88712f56
Not having cached style data doesn't guarantee we don't need to update media query stuff.: https://github.com/w3c/web-platform-tests/commit/a076c3eefd7d27e1dbfa090f24d53a93d19ca40b
Add format-specifier-applied-to-Symbol console tests: https://github.com/w3c/web-platform-tests/commit/54c8d719084e1200481df813f6e01d385ea3b07e
Move http/tests/w3c/webperf/submission/Intel/resource-timing to WPT I: https://github.com/w3c/web-platform-tests/commit/30c53fa13d019394df73379d4d46450f2f2b43fa
Correct serialization of background-color (#9499): https://github.com/w3c/web-platform-tests/commit/43deb07215d283d63e2bdca51d6268eba43bbe81
Sync Mozilla tests as of https://hg.mozilla.org/mozilla-central/rev/d49553765a743ebbd4f08e92a93c9d811ee064c2 .: https://github.com/w3c/web-platform-tests/commit/2a5876e6e482aa2f0be14c56dd952be7e1d9d440
Suppress duplicate reference name warning.: https://github.com/w3c/web-platform-tests/commit/1ab6e3131e61580dd18665f16892c66b03d6f627
Handle ::slotted in ComputeLinkMatchType.: https://github.com/w3c/web-platform-tests/commit/c6b11a5cbcd934c4394f7451529dc18269400ff1
custom-elements: document.importNode() for customized built-in elements should work: https://github.com/w3c/web-platform-tests/commit/79f402f76e5b78f0fae93dbff7c4ddc5cd382e04
custom-elements: Support cloneNode() for customized built-in elements: https://github.com/w3c/web-platform-tests/commit/57780dfd0c0e917a9196974e2d528ac1c705136b
Ignore order when parsing inset and color for box-shadow: https://github.com/w3c/web-platform-tests/commit/9c1c6c3d5513b9b7d46a2c57c0950875ff6dd389
Adapt Orientation IDL tests to latest spec: https://github.com/w3c/web-platform-tests/commit/2ee36f4a24262771657d6d6afaefa7de59527f3b
Adapt Magnetometer IDL tests to latest spec: https://github.com/w3c/web-platform-tests/commit/1f1d4d3edb5d5f9b347ff6427059c9823265a37c
Adapt Accelerometer IDL tests to latest spec: https://github.com/w3c/web-platform-tests/commit/4c19f220c84e5dd052ea4732eab0726a42aa4f82
Adapt Gyroscope IDL tests to latest spec: https://github.com/w3c/web-platform-tests/commit/02ddc69d296850bd8480fb08b836475ef55725a3
SVG Shapes: line supports pathLength: https://github.com/w3c/web-platform-tests/commit/ce3f1b9aa1cae813ec1e676f4d49ded2889993fd
Removed whitespace again: https://github.com/w3c/web-platform-tests/commit/745e43e796207f704f8c92e4274b4d95a4490a4c
Removed newline again: https://github.com/w3c/web-platform-tests/commit/05f4f001b1082c28d92e7dc254be03381bc5efbd
Added missing namepsace for xht: https://github.com/w3c/web-platform-tests/commit/815a41ae039671944aa0bf3cd397476faae49872
Remove trailing eol: https://github.com/w3c/web-platform-tests/commit/127d4e90f61d70633784b4f49bbd4261998870d2
html->xht: https://github.com/w3c/web-platform-tests/commit/8ad0aa888d09fdcb67e3a4cbf719a53fb759bf01
format html as xht: https://github.com/w3c/web-platform-tests/commit/f76a2a0998a70aa33d8f6bef42a713ceb5c2660c
Added new testcases to test font-variant precedence rules: https://github.com/w3c/web-platform-tests/commit/5f8743dcf8aed0d6a624000456b3a70556211f6e