Revert of Web Animations: Update outdated players as part of the render tree update (https://codereview.chromium.org/256063004/)

Reason for revert:
4%-42% regression in blink_perf and cc_perftests at 267058:267100

Original issue's description:
> Web Animations: Update outdated players as part of the render tree update
> 
> In Web Animations, updates to the animation model are live[1] and should be
> visible immediately to queries. In Blink, updating of the model is deferred
> until necessary. Previously there were hooks in getComputedStyle and following
> animation frame callbacks[2]. However these were not sufficient to cover all
> forms of effect queries, eg. synchronous layouts. This patch ensures that
> animation timing is always brought up to date as part of the render tree
> update. This has the additional benefit that the timing update following
> animation frame callbacks can be deferred.
> 
> [1] http://dev.w3.org/fxtf/web-animations/#script-execution-and-live-updates-to-the-model
> [2] https://src.chromium.org/viewvc/blink?view=rev&revision=170169
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=172844

BUG=368841
TBR=esprehn@chromium.org

Review URL: https://codereview.chromium.org/263003004

git-svn-id: svn://svn.chromium.org/blink/trunk@173261 bbb929c8-8fbe-4397-9dbb-9b2b20218538