GitLab

This reverts commit 4fcaee53.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 603116 as the
culprit for flakes in the build cycles as shown on:
https://findit-for-me.appspot.com/waterfall/flake/flake-culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyQwsSDEZsYWtlQ3VscHJpdCIxY2hyb21pdW0vNGZjYWVlNTMxMzliMGFmYjAwM2ZmMWJhMTNiOTAyYTZhM2YyYTMxNQw

Sample Failed Build: https://ci.chromium.org/buildbot/chromium.mac/WebKit%20Mac10.13%20%28retina%29/6030

Sample Failed Step: webkit_layout_tests on ATI GPU on Mac Retina on Mac-10.13.6

Sample Flaky Test: media/controls/overflow-menu-toggle-class-for-animation.html

Original change's description:
> [Media Controls] Added animation to overflow menu
> 
> Toggle "closed" class when open/close menu to achieve transition animation.
> This CL only has opening animation.
> 
> TODO: Add close animation; Add wave like animation to label when opening menu.
> 
> Bug: 814507
> 
> Change-Id: I2a036297741f34905fe868c7ea0a99e9ea91cea3
> Reviewed-on: https://chromium-review.googlesource.com/c/1286949
> Commit-Queue: Jazz Xu <jazzhsu@google.com>
> Reviewed-by: Tommy Steimel <steimel@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#603116}

Change-Id: Ia9b6c5e419ec201f6ac328a1de049c65528f6dc0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 814507, 899335
Reviewed-on: https://chromium-review.googlesource.com/c/1302577
Cr-Commit-Position: refs/heads/master@{#603158}