Add a GPU rasterization hint to cc::PictureLayer

Add a GPU rasterization hint to cc::PictureLayer

This adds a GPU rasterization hint to PictureLayer
and PictureLayerImpl. When using hybrid
rasterization (that is, when running with
--enable-gpu-rasterization), only layers with a
GPU rasterization hint are rasterized on the GPU.

BUG=329722
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=256304

[ajuma, 2014-03-10 17:50:48]

This is split off from http://crrev.com/181063022, and depends on
http://crrev.com/189883009 (that is, on the other part of
http://crrev.com/181063022).

[enne (OOO), 2014-03-10 21:47:59]

Does this have to be on Layer? Can this be on WebContentLayerImpl/PictureLayer?

[ajuma, 2014-03-10 23:37:58]

On 2014/03/10 21:47:59, enne wrote:
> Does this have to be on Layer? Can this be on
WebContentLayerImpl/PictureLayer?

Good idea, done.

[enne (OOO), 2014-03-10 23:45:49]

lgtm, thanks.

[ajuma, 2014-03-11 16:01:11]

The CQ bit was checked by ajuma@chromium.org

[commit-bot: I haz the power, 2014-03-11 16:03:03]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/ajuma@chromium.org/192973002/50001

[commit-bot: I haz the power, 2014-03-11 20:43:01]

Change committed as 256304