Revert of cc: Split animating and drawing into separate actions

Revert of cc: Split animating and drawing into separate actions (https://codereview.chromium.org/206793003/)

Reason for revert:
The reason for reverting is: Broke some downstream unit tests.

BUG=368064
.

Original issue's description:
> cc: Split animating and drawing into separate actions
> 
> Split impl-side animating and drawing into separate actions. This is
> needed to allow for the possibility of a commit between animating and
> drawing so that the main thread gets a chance to consume the new
> animation state. In particular this allows the main thread to
> synchronize with a fling animation using an onscroll handler.
> 
> BUG=347366
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=266624

[Sami, 2014-04-29 14:09:47]

Created Revert of cc: Split animating and drawing into separate actions

[Sami, 2014-04-29 14:10:38]

The CQ bit was checked by skyostil@chromium.org

[Sami, 2014-04-29 14:10:39]

The CQ bit was unchecked by skyostil@chromium.org