Revert of Revert 191506 "Revert 191098 "Enable HTMLPopupMenu in stable""

Revert of Revert 191506 "Revert 191098 "Enable HTMLPopupMenu in stable"" (patchset #1 id:1 of https://codereview.chromium.org/1005873006/)

Reason for revert:
crbug.com/470459, crbug.com/470464, crbug.com/470503, crbug.com/470504, crbug.com/470505

Original issue's description:
> Revert 191506 "Revert 191098 "Enable HTMLPopupMenu in stable""
> 
> Reason: All known major bugs were fixed.  We'd like to try again.
> 
> > Revert 191098 "Enable HTMLPopupMenu in stable"
> >
> > Reason: Caused crashes
> >
> > > Enable HTMLPopupMenu in stable
> > >
> > > BUG=346582
> > >
> > > Review URL: https://codereview.chromium.org/961673005
> >
> > TBR=keishi@chromium.org
> >
> > Review URL: https://codereview.chromium.org/983373002
> 
> TBR=keishi@chromium.org
> BUG=346582
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=192407

TBR=keishi@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=346582
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=192561

[tkent, 2015-03-25 22:40:05]

Created Revert of Revert 191506 "Revert 191098 "Enable HTMLPopupMenu in stable""

[commit-bot: I haz the power, 2015-03-25 22:40:38]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1034863002/1

[commit-bot: I haz the power, 2015-03-25 22:41:18]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=192561

[tkent, 2015-04-02 03:31:53]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1055703003/ by tkent@chromium.org.

The reason for reverting is: Major bugs were fixed..