Fix regression for h264 VideoToolbox entering background.

Fix regression for h264 VideoToolbox entering background.

We need to check the pool to make sure that the encoder session is valid. Otherwise, it appears as if the encoder just does not output frames.

NOTRY=True
BUG=

Committed: https://crrev.com/4c45234b81c7dead5fd376893ad3e2f3e2852f15
Cr-Commit-Position: refs/heads/master@{#13698}

[tkchin_webrtc, 2016-08-09 19:30:12]

Description was changed from

==========
Fix regression for h264 VideoToolbox entering background.

BUG=
==========

to

==========
Fix regression for h264 VideoToolbox entering background.

BUG=
==========

[tkchin_webrtc, 2016-08-09 19:30:13]

tkchin@webrtc.org changed reviewers:
+ haysc@webrtc.org

[tkchin_webrtc, 2016-08-09 19:30:58]

Description was changed from

==========
Fix regression for h264 VideoToolbox entering background.

BUG=
==========

to

==========
Fix regression for h264 VideoToolbox entering background.

We need to check the pool to make sure that the encoder session is valid.
Otherwise, it appears as if the encoder just does not output frames.

BUG=
==========

[Chuck, 2016-08-09 19:40:31]

lgtm

[tkchin_webrtc, 2016-08-09 19:46:41]

Description was changed from

==========
Fix regression for h264 VideoToolbox entering background.

We need to check the pool to make sure that the encoder session is valid.
Otherwise, it appears as if the encoder just does not output frames.

BUG=
==========

to

==========
Fix regression for h264 VideoToolbox entering background.

We need to check the pool to make sure that the encoder session is valid.
Otherwise, it appears as if the encoder just does not output frames.

NOTRY=True
BUG=
==========

[tkchin_webrtc, 2016-08-09 19:54:32]

The CQ bit was checked by tkchin@webrtc.org

[commit-bot: I haz the power, 2016-08-09 19:54:41]

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

[commit-bot: I haz the power, 2016-08-09 20:02:02]

Description was changed from

==========
Fix regression for h264 VideoToolbox entering background.

We need to check the pool to make sure that the encoder session is valid.
Otherwise, it appears as if the encoder just does not output frames.

NOTRY=True
BUG=
==========

to

==========
Fix regression for h264 VideoToolbox entering background.

We need to check the pool to make sure that the encoder session is valid.
Otherwise, it appears as if the encoder just does not output frames.

NOTRY=True
BUG=
==========

[commit-bot: I haz the power, 2016-08-09 20:02:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-09 20:02:07]

Description was changed from

==========
Fix regression for h264 VideoToolbox entering background.

We need to check the pool to make sure that the encoder session is valid.
Otherwise, it appears as if the encoder just does not output frames.

NOTRY=True
BUG=
==========

to

==========
Fix regression for h264 VideoToolbox entering background.

We need to check the pool to make sure that the encoder session is valid.
Otherwise, it appears as if the encoder just does not output frames.

NOTRY=True
BUG=

Committed: https://crrev.com/4c45234b81c7dead5fd376893ad3e2f3e2852f15
Cr-Commit-Position: refs/heads/master@{#13698}
==========

[commit-bot: I haz the power, 2016-08-09 20:02:08]

Patchset 1 (id:??) landed as
https://crrev.com/4c45234b81c7dead5fd376893ad3e2f3e2852f15
Cr-Commit-Position: refs/heads/master@{#13698}