Correctly handle reusing reset picture buffers.

Correctly handle reusing reset picture buffers.

Pending output samples are marked as ready for reuse in
DXVAVideoDecodeAccelerator::Reset. CopySurfaceComplete hasn't executed
to acquire the keyed mutex, so it shouldn't be released. The
incrementing of keyed_mutex_value_ also needs to be moved to someplace
where it's certain that it will be executed even if CopySurfaceComplete
is skipped.

BUG=625564
Review-Url: https://codereview.chromium.org/2128663003
Cr-Commit-Position: refs/heads/master@{#403997}
(cherry picked from commit d1e1331024f9e1fa5c633c0d29d6339c8e9fbe83)

Committed: https://chromium.googlesource.com/chromium/src/+/34dae98bb2bcbd735d00d38c627478df4293aa8b

[jbauman, 2016-07-08 01:53:00]

Description was changed from

==========
Correctly handle reusing reset picture buffers.

Pending output samples are marked as ready for reuse in
DXVAVideoDecodeAccelerator::Reset. CopySurfaceComplete hasn't executed
to acquire the keyed mutex, so it shouldn't be released. The
incrementing of keyed_mutex_value_ also needs to be moved to someplace
where it's certain that it will be executed even if CopySurfaceComplete
is skipped.

BUG=625564

Review-Url: https://codereview.chromium.org/2128663003
Cr-Commit-Position: refs/heads/master@{#403997}
(cherry picked from commit d1e1331024f9e1fa5c633c0d29d6339c8e9fbe83)
==========

to

==========
Correctly handle reusing reset picture buffers.

Pending output samples are marked as ready for reuse in
DXVAVideoDecodeAccelerator::Reset. CopySurfaceComplete hasn't executed
to acquire the keyed mutex, so it shouldn't be released. The
incrementing of keyed_mutex_value_ also needs to be moved to someplace
where it's certain that it will be executed even if CopySurfaceComplete
is skipped.

BUG=625564

Review-Url: https://codereview.chromium.org/2128663003
Cr-Commit-Position: refs/heads/master@{#403997}
(cherry picked from commit d1e1331024f9e1fa5c633c0d29d6339c8e9fbe83)

Committed:
https://chromium.googlesource.com/chromium/src/+/34dae98bb2bcbd735d00d38c6274...
==========

[jbauman, 2016-07-08 01:53:02]

Committed patchset #1 (id:1) manually as
34dae98bb2bcbd735d00d38c627478df4293aa8b.