Merge 152980 "CSS clip should not be considered when clamping fo..."

Merge 152980 "CSS clip should not be considered when clamping fo..."

> CSS clip should not be considered when clamping for overflow clip.
> 
> Previous patch in webkit rev 152919 partially fixed this, but skipped one code
> path that still needed fixing. These code paths are intended to clamp the
> backgroundRect to the borderBox, or a slightly inflated borderBox.  It is
> incorrect to trigger those code paths when there is only CSS clip and no
> overflow clip.  Fixing this bug also results in a tiny refactor where the CSS
> clip if-statement is separated from the overflow clip chunks of code.
> 
> BUG=246728
> R=esprehn@chromium.org
> 
> Review URL: https://codereview.chromium.org/17653002

TBR=shawnsingh@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=153084

[shawnsingh, 2013-06-26 18:13:39]

Committed patchset #1 manually as r153084.