Crash Fix (Cast Streaming): Render overlay on copy of source frame.

Crash Fix (Cast Streaming): Render overlay on copy of source frame.

Due to major overhaul going on in the Video Capture stack, the video
frames sent to the render process have become read-only (they used to be
read-write). The "performance overlay" debugging utility would just
modify pixels on source video frames, and in the new world this caused a
page fault. Solution: Now, it must first make a copy of the frame.

BUG=677341
Review-Url: https://codereview.chromium.org/2775993002
Cr-Commit-Position: refs/heads/master@{#459882}
Committed: https://chromium.googlesource.com/chromium/src/+/dcb83c6cb421c934ca933260391390ad5038bb70

[miu, 2017-03-25 02:50:51]

miu@chromium.org changed reviewers:
+ xjz@chromium.org

[miu, 2017-03-25 02:50:52]

xjz: PTAL.

[miu, 2017-03-25 02:50:55]

The CQ bit was checked by miu@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-03-25 02:51:04]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-03-25 04:20:59]

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

[commit-bot: I haz the power, 2017-03-25 04:21:00]

Dry run: Try jobs failed on following builders:
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[xjz, 2017-03-27 17:27:44]

lgtm

[miu, 2017-03-27 19:15:48]

The CQ bit was checked by miu@chromium.org

[commit-bot: I haz the power, 2017-03-27 19:16:30]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-03-27 21:16:36]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1490642148541610, "parent_rev":
"706a5ddf48c845431a8de6aabc31d5d0aed3fe45", "commit_rev":
"467515e0d8c1739db6406b97ef0f0e6eb56f3ce6"}

[commit-bot: I haz the power, 2017-03-27 21:21:35]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1490642148541610, "parent_rev":
"1facd6324b98a4bfde0ecbad78491198f5dcc681", "commit_rev":
"dcb83c6cb421c934ca933260391390ad5038bb70"}

[commit-bot: I haz the power, 2017-03-27 21:22:26]

Description was changed from

==========
Crash Fix (Cast Streaming): Render overlay on copy of source frame.

Due to major overhaul going on in the Video Capture stack, the video
frames sent to the render process have become read-only (they used to be
read-write). The "performance overlay" debugging utility would just
modify pixels on source video frames, and in the new world this caused a
page fault. Solution: Now, it must first make a copy of the frame.

BUG=677341
==========

to

==========
Crash Fix (Cast Streaming): Render overlay on copy of source frame.

Due to major overhaul going on in the Video Capture stack, the video
frames sent to the render process have become read-only (they used to be
read-write). The "performance overlay" debugging utility would just
modify pixels on source video frames, and in the new world this caused a
page fault. Solution: Now, it must first make a copy of the frame.

BUG=677341

Review-Url: https://codereview.chromium.org/2775993002
Cr-Commit-Position: refs/heads/master@{#459882}
Committed:
https://chromium.googlesource.com/chromium/src/+/dcb83c6cb421c934ca9332603913...
==========

[commit-bot: I haz the power, 2017-03-27 21:22:27]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/dcb83c6cb421c934ca9332603913...