WPT import https://crrev.com/c/1090752 introduced new failures in external/wpt/IndexedDB:

List of new failures:
external/wpt/IndexedDB/interfaces.any.html new failing tests: https://crrev.com/c/1090752/4/third_party/WebKit/LayoutTests/external/wpt/IndexedDB/interfaces.any-expected.txt
external/wpt/IndexedDB/interfaces.any.worker.html new failing tests: https://crrev.com/c/1090752/4/third_party/WebKit/LayoutTests/external/wpt/IndexedDB/interfaces.any.worker-expected.txt

This import contains upstream changes from 5133c54714fe33a25e7182ba04cb73156ca4abdb to 005c381c81c4662ea3cbdd9d2d9cad59f671ec36:
service worker: Add test for CSS cross-origin access.: https://github.com/web-platform-tests/wpt/commit/005c381c81c4662ea3cbdd9d2d9cad59f671ec36
HTML: update hashchange/popstate event tests: https://github.com/web-platform-tests/wpt/commit/81303e16ee14b318d07c9aeb56e16e7499647b7a
Ensure <slot> disables whitespace optimizations.: https://github.com/web-platform-tests/wpt/commit/a7853ac4be93481f0f76fe94f8bcd7053b67e238
Changing the slot name should properly invalidate layout.: https://github.com/web-platform-tests/wpt/commit/831c3ee73b3023a193e5390791c33adda0a37ae4
Fix the TemporaryFile mode to prevent crashing. (#11382): https://github.com/web-platform-tests/wpt/commit/13365c7a94a80b19e0c57b8fc76609e73aea2061
DOM: more window.event tests: https://github.com/web-platform-tests/wpt/commit/6380b5ce0582cabef270455d698df0830d91ccfc
Add tests for window.event: https://github.com/web-platform-tests/wpt/commit/659fe6eb4dea2550f4fb5dc14c2916aa1eaef1cc
Worker: Use Document's SettingsObject for top-level module script loading on dedicated workers: https://github.com/web-platform-tests/wpt/commit/ed2f4a4d980a609e817b4115d025cd06202a9882
dom: Mark dom/nodes/ParentNode-querySelector-All*.* slow.: https://github.com/web-platform-tests/wpt/commit/b8fa20cf8c517fe7211a2510bda81d2670f3a6c3