WPT import https://crrev.com/c/954924 introduced new failures in external/wpt/streams:

List of new failures:
external/wpt/streams/readable-streams/garbage-collection.dedicatedworker.html new failing tests: https://crrev.com/c/954924/4/third_party/WebKit/LayoutTests/external/wpt/streams/readable-streams/garbage-collection.dedicatedworker-expected.txt
external/wpt/streams/readable-streams/bad-underlying-sources.html new failing tests: https://crrev.com/c/954924/4/third_party/WebKit/LayoutTests/external/wpt/streams/readable-streams/bad-underlying-sources-expected.txt
external/wpt/streams/readable-streams/garbage-collection.sharedworker.html new failing tests: https://crrev.com/c/954924/4/third_party/WebKit/LayoutTests/external/wpt/streams/readable-streams/garbage-collection.sharedworker-expected.txt
external/wpt/streams/readable-streams/bad-underlying-sources.dedicatedworker.html new failing tests: https://crrev.com/c/954924/4/third_party/WebKit/LayoutTests/external/wpt/streams/readable-streams/bad-underlying-sources.dedicatedworker-expected.txt
external/wpt/streams/readable-streams/bad-underlying-sources.sharedworker.html new failing tests: https://crrev.com/c/954924/4/third_party/WebKit/LayoutTests/external/wpt/streams/readable-streams/bad-underlying-sources.sharedworker-expected.txt
external/wpt/streams/readable-streams/garbage-collection.html new failing tests: https://crrev.com/c/954924/4/third_party/WebKit/LayoutTests/external/wpt/streams/readable-streams/garbage-collection-expected.txt
external/wpt/streams/readable-streams/garbage-collection.serviceworker.https.html new failing tests: https://crrev.com/c/954924/4/third_party/WebKit/LayoutTests/external/wpt/streams/readable-streams/garbage-collection.serviceworker.https-expected.txt
external/wpt/streams/readable-streams/bad-underlying-sources.serviceworker.https.html new failing tests: https://crrev.com/c/954924/4/third_party/WebKit/LayoutTests/external/wpt/streams/readable-streams/bad-underlying-sources.serviceworker.https-expected.txt

This import contains upstream changes from 51e77bba5c7e01c569bf2150d0ea489c92111b19 to 08d063d028f26c1ade1b151a1fb01a9d29877fdd:
Add more tests for data: URLs with space in body: https://github.com/w3c/web-platform-tests/commit/08d063d028f26c1ade1b151a1fb01a9d29877fdd
Merge pull request #9892 from w3c/idl-in-interfaces: https://github.com/w3c/web-platform-tests/commit/4a9668d4ff65e156d833f1ebc48b6ee7e6d46779
Readable streams: test no throwing on redundant controller.error(): https://github.com/w3c/web-platform-tests/commit/efa3c757473b615b31bcfbdd9e386db6bbb0f180 [affecting this directory]
Update the webidl IDL file (#9852): https://github.com/w3c/web-platform-tests/commit/fbf57c4fdcfec9bba0ccb8fff495b23ed373c8ab
Consolidate all IDL files into interfaces/: https://github.com/w3c/web-platform-tests/commit/2f451fb5da7865cc45c7c8eb803072ae7e0649e0