Revert of Rename WebAnimation to WebCompositorAnimation (patchset #5 of https://codereview.chromium…

Revert of Rename WebAnimation to WebCompositorAnimation (patchset #5 of https://codereview.chromium.org/412123002/)

Reason for revert:
BUG=402897
TBR=samli@chromium.org, jochen@chromium.org, vollick@chromium.org

Original issue's description:
> Rename WebAnimation to WebCompositorAnimation
>
> Change WebAnimation to WebCompositorAnimation
> Change WebAnimationCurve to WebCompositorAnimationCurve
> Change WebAnimationDelegate to WebCompositorAnimationDelegate
>
> This is patch 3 of 3. It builds on http://crrev.com/413983002
>
> BUG=396358
>
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=179910

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=180155

[alancutter (OOO until 2018), 2014-08-13 07:00:07]

The CQ bit was checked by alancutter@chromium.org

[commit-bot: I haz the power, 2014-08-13 07:01:09]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/alancutter@chromium.org/467123002/1

[samli, 2014-08-13 07:02:57]

lgtm

[commit-bot: I haz the power, 2014-08-13 08:01:12]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  linux_chromium_gn_rel on tryserver.blink
(http://build.chromium.org/p/tryserver.blink/builders/linux_chromium_gn_rel/bu...)

[commit-bot: I haz the power, 2014-08-13 08:13:47]

Change committed as 180155