Merge https://chromium.googlesource.com/chromium/blink/+/597f44ec928e08820574728889adabc6d8ecd746 It always returned true in WebKit, and doesn't exist in modern DOM specs. Freezing it to true seems pretty safe.
Created attachment 216267 [details] Merges the patch
Comment on attachment 216267 [details] Merges the patch Clearing flags on attachment: 216267 Committed r158829: <http://trac.webkit.org/changeset/158829>
All reviewed patches have been landed. Closing bug.