[chromium] Roll chromium DEPS 185662 -> 185963

Roll roll roll the deps
  Gently from downstream.
Merrily merrily merrily merrily
  Green bots are but a dream.

* DEPS:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144673 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Canvas and DOM go out of sync
https://bugs.webkit.org/show_bug.cgi?id=107701

Patch by Alexis Hetu <sugoi@chromium.org> on 2013-03-04
Reviewed by Simon Fraser.

Source/WebCore:

Test: fast/canvas/canvas-overflow-hidden-animation.html

Added an update of the current compositor from the layer's stacking
container when the layer itself isn't a stacking container.

* rendering/RenderLayerBacking.cpp:
(WebCore::RenderLayerBacking::updateAfterLayout):
Added an update of the stacking container of the owning layer of the
layer backing when the owning layer isn't a stacking container itself.

LayoutTests:

Added a new layout test for moving an object (a div) within a div that
has the "overflow:hidden" property.

* fast/canvas/canvas-overflow-hidden-animation-expected.html: Added.
* fast/canvas/canvas-overflow-hidden-animation.html: Added.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144674 268f45cc-cd09-0410-ab3c-d52691b4dbfc