[Ozone-Dri] Replace blend with copy to the modeset buffer

[Ozone-Dri] Replace blend with copy to the modeset buffer

By default Skia blends the source and destination buffers when drawing
an image. This forces it to copy the source buffer to the modeset
buffer.

BUG=455605
Committed: https://crrev.com/38ad735158807f7f25a3805ab650cc15913e3d18
Cr-Commit-Position: refs/heads/master@{#317691}

[dnicoara, 2015-02-23 21:08:21]

dnicoara@chromium.org changed reviewers:
+ alexst@chromium.org

[dnicoara, 2015-02-23 21:08:21]

PTAL

[alexst (slow to review), 2015-02-23 21:32:26]

lgtm

[dnicoara, 2015-02-23 22:55:18]

The CQ bit was checked by dnicoara@chromium.org

[commit-bot: I haz the power, 2015-02-23 22:56:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/948903003/1

[commit-bot: I haz the power, 2015-02-23 23:30:09]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-02-23 23:30:10]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[dnicoara, 2015-02-23 23:42:34]

The CQ bit was checked by dnicoara@chromium.org

[commit-bot: I haz the power, 2015-02-23 23:52:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/948903003/1

[commit-bot: I haz the power, 2015-02-24 00:37:04]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-24 00:39:09]

Patchset 1 (id:??) landed as
https://crrev.com/38ad735158807f7f25a3805ab650cc15913e3d18
Cr-Commit-Position: refs/heads/master@{#317691}