commit fa3fcf6eb2ec5bfb3504ab2c118bc8406fd5ef57
author Kenichi Ishibashi <bashi@chromium.org> Fri Apr 28 06:55:36 2017
committer Commit Bot <commit-bot@chromium.org> Fri Apr 28 08:44:43 2017
tree 098ae15fd4ef1f850404a6aa35c8408613212ffd
parent f32671c0f445b58612ebba5c7a72de7c7981e8e9

Trace CustomEvent.detail instead of keeping ScriptValue

Before this CL we used V8PrivateProperty to avoid
cyclic references between V8 and Blink. Now we have
trace wrapper and DOM object can have a reference to
V8 objects. Use trace wrapper for CustomEvent

BUG=501866,700680

Change-Id: I9089d9cf0828bb979467cc5bd859e460847b6c28
Reviewed-on: https://chromium-review.googlesource.com/484162
Commit-Queue: Kenichi Ishibashi <bashi@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#467934}