Fix for pixel-moving CSS filters with clipping.

Fix for pixel-moving CSS filters with clipping.

When using a "pixel-moving" filter (ie., drop-shadow or blur), we
disable the normal clip operation, since we want to want to render
the full results of the element pre-clip for filtering. Clipping is
then applied just before drawing the filtered result.

However, we shouldn't disable *all* clipping recursively, since we
want children which clip themselves to still continue to be clipped.
The fix is to pass the original (unmodified) paintingInfo to
paintChildren().

BUG=350411
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=180361

[Stephen White, 2014-08-14 22:21:01]

esprehn: PTAL. Thanks!

[esprehn, 2014-08-14 22:24:05]

Lgtm, please add a doctype to the test :)

[Stephen White, 2014-08-15 11:44:22]

On 2014/08/14 22:24:05, esprehn wrote:
> Lgtm, please add a doctype to the test :)

Done.

[Stephen White, 2014-08-15 11:46:38]

The CQ bit was checked by senorblanco@chromium.org

[commit-bot: I haz the power, 2014-08-15 11:46:50]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/senorblanco@chromium.org/476953003/20001

[commit-bot: I haz the power, 2014-08-15 12:44:33]

FYI, CQ is re-trying this CL (attempt #1).
The failing builders are:
  mac_gpu_triggered_tests on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/mac_gpu_triggered...)

[commit-bot: I haz the power, 2014-08-15 14:37:43]

Committed patchset #2 (20001) as 180361