Android VideoCapture: Add null checks in stopCaptureOnCameraThread

Android VideoCapture: Add null checks in stopCaptureOnCameraThread

If stopCapture is called shortly after startCapture, and the first startCaptureOnCameraThread failed, but still hasn't retried 3 times, stopCaptureOnCameraThread will be called in a state where the camera is not initialized. This CL adds null checks in stopCaptureOnCameraThread to avoid crashes.

BUG=b/27939867

Committed: https://crrev.com/23b08eb531aef7d2c69512622c46cf2dab965207
Cr-Commit-Position: refs/heads/master@{#12234}

[magjed_webrtc, 2016-04-04 13:27:45]

Description was changed from

==========
Android VideoCapture: Add null checks in stopCaptureOnCameraThread

If stopCapture is called shortly after startCapture, and the first
startCaptureOnCameraThread failed, but still hasn't retried 3 times,
stopCaptureOnCameraThread will be called in a state where the camera is not
initialized. This CL adds null checks in stopCaptureOnCameraThread to avoid
crashes.

BUG=b/27939867
==========

to

==========
Android VideoCapture: Add null checks in stopCaptureOnCameraThread

If stopCapture is called shortly after startCapture, and the first
startCaptureOnCameraThread failed, but still hasn't retried 3 times,
stopCaptureOnCameraThread will be called in a state where the camera is not
initialized. This CL adds null checks in stopCaptureOnCameraThread to avoid
crashes.

BUG=b/27939867
==========

[magjed_webrtc, 2016-04-04 13:27:45]

magjed@webrtc.org changed reviewers:
+ glaznev@webrtc.org

[magjed_webrtc, 2016-04-04 13:27:54]

Alex - please take a look.

[AlexG, 2016-04-04 17:15:16]

lgtm

[magjed_webrtc, 2016-04-05 08:03:04]

The CQ bit was checked by magjed@webrtc.org

[commit-bot: I haz the power, 2016-04-05 08:03:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1854103002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1854103002/1

[commit-bot: I haz the power, 2016-04-05 08:37:08]

Description was changed from

==========
Android VideoCapture: Add null checks in stopCaptureOnCameraThread

If stopCapture is called shortly after startCapture, and the first
startCaptureOnCameraThread failed, but still hasn't retried 3 times,
stopCaptureOnCameraThread will be called in a state where the camera is not
initialized. This CL adds null checks in stopCaptureOnCameraThread to avoid
crashes.

BUG=b/27939867
==========

to

==========
Android VideoCapture: Add null checks in stopCaptureOnCameraThread

If stopCapture is called shortly after startCapture, and the first
startCaptureOnCameraThread failed, but still hasn't retried 3 times,
stopCaptureOnCameraThread will be called in a state where the camera is not
initialized. This CL adds null checks in stopCaptureOnCameraThread to avoid
crashes.

BUG=b/27939867
==========

[commit-bot: I haz the power, 2016-04-05 08:37:09]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-05 08:37:12]

Description was changed from

==========
Android VideoCapture: Add null checks in stopCaptureOnCameraThread

If stopCapture is called shortly after startCapture, and the first
startCaptureOnCameraThread failed, but still hasn't retried 3 times,
stopCaptureOnCameraThread will be called in a state where the camera is not
initialized. This CL adds null checks in stopCaptureOnCameraThread to avoid
crashes.

BUG=b/27939867
==========

to

==========
Android VideoCapture: Add null checks in stopCaptureOnCameraThread

If stopCapture is called shortly after startCapture, and the first
startCaptureOnCameraThread failed, but still hasn't retried 3 times,
stopCaptureOnCameraThread will be called in a state where the camera is not
initialized. This CL adds null checks in stopCaptureOnCameraThread to avoid
crashes.

BUG=b/27939867

Committed: https://crrev.com/23b08eb531aef7d2c69512622c46cf2dab965207
Cr-Commit-Position: refs/heads/master@{#12234}
==========

[commit-bot: I haz the power, 2016-04-05 08:37:12]

Patchset 1 (id:??) landed as
https://crrev.com/23b08eb531aef7d2c69512622c46cf2dab965207
Cr-Commit-Position: refs/heads/master@{#12234}