Add some performance testing for paint invalidations

Add some performance testing for paint invalidations

After moving paint invalidations after compositing updates, we
lost most of the performance coverage we had as most performance
tests trigger layout without generating a frame.

The new cases are DRT specific as we use
Internals.forceCompositingUpdate. This is required as rAF
will cap the tests to the sync frequency.

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=179881

[esprehn, 2014-08-08 03:13:54]

lgtm with the tests fixed.

https://codereview.chromium.org/450813002/diff/20001/PerformanceTests/PaintIn...
File PerformanceTests/PaintInvalidation/shift-rectangle-left-invalidate.html
(right):

https://codereview.chromium.org/450813002/diff/20001/PerformanceTests/PaintIn...
PerformanceTests/PaintInvalidation/shift-rectangle-left-invalidate.html:13:
.translated {
Translate usually means something else this doesn't use css translated, lets use
.shifted instead.

https://codereview.chromium.org/450813002/diff/20001/PerformanceTests/PaintIn...
File
PerformanceTests/PaintInvalidation/shift-rectangle-translateX-invalidate.html
(right):

https://codereview.chromium.org/450813002/diff/20001/PerformanceTests/PaintIn...
PerformanceTests/PaintInvalidation/shift-rectangle-translateX-invalidate.html:11:
.translated {
ditto

[Julien - ping for review, 2014-08-09 00:35:16]

Thanks Elliott!

https://codereview.chromium.org/450813002/diff/20001/PerformanceTests/PaintIn...
File PerformanceTests/PaintInvalidation/shift-rectangle-left-invalidate.html
(right):

https://codereview.chromium.org/450813002/diff/20001/PerformanceTests/PaintIn...
PerformanceTests/PaintInvalidation/shift-rectangle-left-invalidate.html:13:
.translated {
On 2014/08/08 03:13:54, esprehn wrote:
> Translate usually means something else this doesn't use css translated, lets
use
> .shifted instead.

Done.

https://codereview.chromium.org/450813002/diff/20001/PerformanceTests/PaintIn...
File
PerformanceTests/PaintInvalidation/shift-rectangle-translateX-invalidate.html
(right):

https://codereview.chromium.org/450813002/diff/20001/PerformanceTests/PaintIn...
PerformanceTests/PaintInvalidation/shift-rectangle-translateX-invalidate.html:11:
.translated {
On 2014/08/08 03:13:54, esprehn wrote:
> ditto

Done.

[Julien - ping for review, 2014-08-09 00:35:41]

The CQ bit was checked by jchaffraix@chromium.org

[commit-bot: I haz the power, 2014-08-09 00:36:26]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/jchaffraix@chromium.org/450813002/40001

[commit-bot: I haz the power, 2014-08-09 01:46:47]

Change committed as 179881

[tonyg, 2014-08-09 17:28:49]

A revert of this CL has been created in
https://codereview.chromium.org/459663002/ by tonyg@chromium.org.

The reason for reverting is: Timing out on perf bots. One example:
http://chromegw/i/chromium.perf/builders/Linux%20Perf%20%281%29/builds/2268/s....