Revert 204014 "Don't track whether a resize ack is pending durin..."

Revert 204014 "Don't track whether a resize ack is pending durin..."

> Don't track whether a resize ack is pending during layout tests
> 
> Unlike normal operation, in layout tests the renderer can request a synchronous
> change of its size. The renderer and the browser therefore often run out of
> sync. However, it's important that the renderer always acks a resize request
> from the browser.
> 
> Previously, I tried to track the size the browser expects the renderer to have
> in the renderer, however, this turns out to not work when the compositor is in
> hidpi mode. Instead of trying to fix this up somehow, just ignore whether or
> not the browser is expecting resize acks during layout tests
> 
> BUG=244369
> 
> Review URL: https://chromiumcodereview.appspot.com/16285005

Breaks fast/hidpi on windows

TBR=jochen@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=204038

[jamesr, 2013-06-04 20:57:03]

Committed patchset #1 manually as r204038.