Add a way for the gpu veto to report back the reason why it said no

Add a way for the gpu veto to report back the reason why it said no

BUG=2334
Committed: http://code.google.com/p/skia/source/detail?r=15012

[humper, 2014-05-30 21:06:41]

ptal

[bsalomon, 2014-05-30 21:19:59]

On 2014/05/30 21:06:41, humper wrote:
> ptal

lgtm

[humper, 2014-05-30 21:45:18]

The CQ bit was checked by humper@google.com

[commit-bot: I haz the power, 2014-05-30 21:46:58]

CQ is trying da patch. Follow status at
 https://skia-tree-status.appspot.com/cq/humper@google.com/301423002/1

[commit-bot: I haz the power, 2014-05-30 21:52:57]

Change committed as 15012

[ernstm, 2014-05-30 22:07:03]

https://codereview.chromium.org/301423002/diff/1/src/core/SkPicture.cpp
File src/core/SkPicture.cpp (right):

https://codereview.chromium.org/301423002/diff/1/src/core/SkPicture.cpp#newco...
src/core/SkPicture.cpp:667: if (this->numPaintWithPathEffectUses() <
kNumPaintWithPathEffectUsesTol)
Shouldn't this be >= ?

[robertphillips, 2014-06-02 13:22:15]

https://codereview.chromium.org/301423002/diff/1/src/core/SkPicture.cpp
File src/core/SkPicture.cpp (right):

https://codereview.chromium.org/301423002/diff/1/src/core/SkPicture.cpp#newco...
src/core/SkPicture.cpp:665:
(this->numAAConcavePaths()-this->numAAHairlineConcavePaths()) <
kNumAAConcavePaths;
NULL != reason ?