commit 3ea192285757861d168b6e508bb34bc054194a22
author Adam Rice <ricea@chromium.org> Mon Feb 05 09:08:10 2018
committer Commit Bot <commit-bot@chromium.org> Mon Feb 05 09:08:10 2018
tree 595679c2e1580e5edb6fa4a064dd212f911edde4
parent 406010c4b4e27073d52f2d7af881a302d1beae99

Implement AbortController and AbortSignal

Also adjust layout tests expectations to match the new behaviour. One
fetch() wpt test that previously failed due to AbortController being
undefined now times out because the "signal" properties in fetch options
doesn't do anything yet. This will be fixed once it is implemented.

Spec: https://dom.spec.whatwg.org/#aborting-ongoing-activities
Design doc: https://docs.google.com/document/d/1OuoCG2uiijbAwbCw9jaS7tHEO0LBO_4gMNio1ox0qlY/edit
Intent to Ship: https://groups.google.com/a/chromium.org/d/msg/blink-dev/9vNZh4fhV2U/ZVxD2iQACgAJ

BUG=750599

Change-Id: I0e504bbf7f8552d602913ee2069bbf90f95deaff
Reviewed-on: https://chromium-review.googlesource.com/896669
Commit-Queue: Adam Rice <ricea@chromium.org>
Reviewed-by: Kent Tamura <tkent@chromium.org>
Reviewed-by: Hayato Ito <hayato@chromium.org>
Reviewed-by: Joshua Bell <jsbell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#534352}