WPT import https://crrev.com/c/1292517 introduced new failures in external/wpt/webrtc:

List of new failures:
external/wpt/webrtc/RTCRtpTransceiver.https.html new failing tests: https://crrev.com/c/1292517/4/third_party/WebKit/LayoutTests/external/wpt/webrtc/RTCRtpTransceiver.https-expected.txt

This import contains upstream changes from e8fb64ee1c401bc2d1bd79eb99c07f8f0ede37ba to 64fed9375cb182a7109797f034a741977af95485:
Add self to suggested reviewers for `tools/` (#13629): https://github.com/web-platform-tests/wpt/commit/64fed9375cb182a7109797f034a741977af95485
Revert "Implement fallback content for RemoteFrameOwner": https://github.com/web-platform-tests/wpt/commit/b1d6c5d076523740d62187a19eda1ad20214271c
Implement fallback content for RemoteFrameOwner: https://github.com/web-platform-tests/wpt/commit/5450f2c41562754e0cd6e301ebf38b6efa0fcec8
Add wpt test for ligature feature precedence.: https://github.com/web-platform-tests/wpt/commit/0dbf2c59fb3fb1d28ca89f7eae3cff594e7cb9b8
remove duplicate line: https://github.com/web-platform-tests/wpt/commit/2b3e49da896ad67c8e337304a07a8c77f93b4c3e
Fix a couple of typos in transform interpolation tests: https://github.com/web-platform-tests/wpt/commit/b6076f52dcc5a73e80b4a49dcebb87520966f377
Add tests for transform list interpolation: https://github.com/web-platform-tests/wpt/commit/a26f17d1cd70f1fd0c48b7c017dc36d0ec98cbfc
Find affected idlharness tests (#13392): https://github.com/web-platform-tests/wpt/commit/9483e7118cfc7394a99c4247a8b50906e0331354
Add assumption test for audio/video autoplay and make Chrome pass (#13622): https://github.com/web-platform-tests/wpt/commit/cf1873d8e4561c34fed1d3f3836d4c4a3f74aa8c
[css-properties-values-api] List syntaxes should accept one or more items.: https://github.com/web-platform-tests/wpt/commit/0df5d1b9a35dcea274e220e50b7dca141c03b5eb
Update urllib3 from 1.23 to 1.24 (#13548): https://github.com/web-platform-tests/wpt/commit/c38339f8a627aa8b8c5f5cd27539e82ee612877a
Simplify a check.: https://github.com/web-platform-tests/wpt/commit/cd0851ecc7a2099f781ea01188e4a4efb42c4855
Pass the right frame to PushAbsoluteContainingBlock to determine whether we're a fixed-pos containing block.: https://github.com/web-platform-tests/wpt/commit/2278414e01b9479d4884413f8f035bc66575b095
Update interfaces/payment-request.idl (#13608): https://github.com/web-platform-tests/wpt/commit/41d27187aa87bdc51dcf94e35431b36a32baa9f2
Update interfaces/csp-embedded-enforcement.idl (#13607): https://github.com/web-platform-tests/wpt/commit/695b7c4cc4c20a156b7edd868d69cac5f0cef375
Editorial: update some issue links: https://github.com/web-platform-tests/wpt/commit/cd57ce96a188925e931b91302db415191a97d1f4
Add a `.optional.` file name flag for optional behavior (#13586): https://github.com/web-platform-tests/wpt/commit/80dce24781817a9091b3ed5094dbd2b58386d152
fix: show requires user activation (#13590): https://github.com/web-platform-tests/wpt/commit/be86392ec8f14a6f3299bb5ac9fd633cfbb2edb8
Use content width to calculate percentage text-indent: https://github.com/web-platform-tests/wpt/commit/824f0c1df556305042b8aa8073c32e9ef86c3efa
Use the marionette reftest implemenation on Windows: https://github.com/web-platform-tests/wpt/commit/168de7c3328f9f7553993a5aae5ccd1bc1e748f5
Use --install-fonts to install fonts for wptrunner: https://github.com/web-platform-tests/wpt/commit/897993b016daa13665a6d7be87833eb637445fd7
Update requests to 2.20.0 (#13601): https://github.com/web-platform-tests/wpt/commit/4d43b10637109e425e44641ea1d6a1db59405c07
webdriver: remove known web element cache: https://github.com/web-platform-tests/wpt/commit/e94a910ee358c57dc18cbae4b4874d69ef26e569
webdriver: fix element comparison assertions: https://github.com/web-platform-tests/wpt/commit/84ef023859c284d9b9701e0dd95f170b0e4c85a9
[ci] Schedule serviceworker-e10s web-platform-test tasks with linux64/debug on mozilla-central: https://github.com/web-platform-tests/wpt/commit/ec944f2b4d53e173f9fcba7a2b7b459121cb99cc
Ensure no-op will-change changes also get reflected in the change hint.: https://github.com/web-platform-tests/wpt/commit/129fcc7c24efe5c410e7e6951f1dcb8fb2c4a444
[Background Fetch] Throw DOMException for responseReady on abort.: https://github.com/web-platform-tests/wpt/commit/f3ca7fcb4507476c55812417b8d451c9ef33a380
[Background Fetch] Simplify fetch storage workflow.: https://github.com/web-platform-tests/wpt/commit/b38f09e16029e5944ef273644ba52588977515b7
[css-regions] Inheritance and initial values (#13584): https://github.com/web-platform-tests/wpt/commit/8ca1dc455a45eb6d8429ddf63ad423f6619c5674
Create answers with a=mid even if the offer did not have a=mid: https://github.com/web-platform-tests/wpt/commit/637f499536f96b6903181ee72722fa2d003601e0 [affecting this directory]
Merge pull request #13574 from ewilligers/scroll-anchoring-inheritance: https://github.com/web-platform-tests/wpt/commit/ca59071370a1e596a021ddea991de64cc374a545
Add a test for the WebAssembly Web API. (#13483): https://github.com/web-platform-tests/wpt/commit/042665de556151e01cb2db79896552dbfafe3d58
[css-properties-values-api] Support calc() values for <integer>.: https://github.com/web-platform-tests/wpt/commit/979839c026d9a272a0c5c09097b92b74b00ff90e
Update data URL test case for empty MIME parameter: https://github.com/web-platform-tests/wpt/commit/8de8728b667ec03234fc61653cb4f58ac50bfcc5
[css-properties-values-api] Test styleMap in paint worklet.: https://github.com/web-platform-tests/wpt/commit/b0d6f94eff4e76277e4afa70c2b098fdd0e99e19
[css-properties-values-api] Test that interpolated values reach worklet.: https://github.com/web-platform-tests/wpt/commit/4b1465879f1439b31dc7627b3f5bb285775ccaa3
[service-workers] Refactor to use async cleanup (#13165): https://github.com/web-platform-tests/wpt/commit/1569ae03d34aa2d1eb2fce5de52eba07673eae2b
Revise inline item and block-level replaced element handling Element#innerText: https://github.com/web-platform-tests/wpt/commit/f68ddc5d4e458d7855cbb4cb9cd5597c03e7e425
[css-exclusions] Inheritance, initial values (#13573): https://github.com/web-platform-tests/wpt/commit/eaa3c0835464a286f4805895f5bcd7556b1b46c0
[css-scroll-anchoring] Inheritance, initial value: https://github.com/web-platform-tests/wpt/commit/1772ed703f2135623e5443bb3a07b1d0110f7076