skia: Avoid drawing of images completely in PaintSimplifier.

skia: Avoid drawing of images completely in PaintSimplifier.

Images are expensive to draw, especially when they need to be
scaled. This skips draw operations with images completely to
ensure that drawing using the PaintSimplifier has a predictable
cost.

BUG=

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=274642

[reveman, 2014-06-02 18:42:35]

Tried this as a simple way to remove images from low-res tiles.   Looks fine imo
and would solve current performance and caching problems related to low-res
tiles.

[reed1, 2014-06-02 18:54:52]

lgtm

[enne (OOO), 2014-06-03 18:46:44]

lgtm2

I think we're paying too much for low res, and this is a good easy step.  If
folks complain about this, then we can reconsider just removing it entirely.

[reveman, 2014-06-03 18:50:11]

The CQ bit was checked by reveman@chromium.org

[commit-bot: I haz the power, 2014-06-03 18:51:08]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/reveman@chromium.org/310643004/1

[commit-bot: I haz the power, 2014-06-03 20:16:03]

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

[commit-bot: I haz the power, 2014-06-03 21:51:16]

Change committed as 274642