Make sure VideoReceiveStream can be restarted

Make sure VideoReceiveStream can be restarted

After calling Start(), doing a Stop() then Start() sequence should bring
the stream back to the original state.

BUG=webrtc:6501
Committed: https://crrev.com/113bdcadf37631835e65cd60d5d1f8d0926ba5f6
Cr-Commit-Position: refs/heads/master@{#14597}

[sprang_webrtc, 2016-10-11 08:30:50]

sprang@webrtc.org changed reviewers:
+ tommi@webrtc.org

[tommi, 2016-10-11 09:32:20]

lgtm

[sprang_webrtc, 2016-10-11 09:53:07]

The CQ bit was checked by sprang@webrtc.org

[commit-bot: I haz the power, 2016-10-11 09:53:12]

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, 2016-10-11 10:10:13]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-11 10:10:19]

Description was changed from

==========
Make sure VideoReceiveStream can be restarted

After calling Start(), doing a Stop() then Start() sequence should bring
the stream back to the original state.

BUG=webrtc:6501
==========

to

==========
Make sure VideoReceiveStream can be restarted

After calling Start(), doing a Stop() then Start() sequence should bring
the stream back to the original state.

BUG=webrtc:6501

Committed: https://crrev.com/113bdcadf37631835e65cd60d5d1f8d0926ba5f6
Cr-Commit-Position: refs/heads/master@{#14597}
==========

[commit-bot: I haz the power, 2016-10-11 10:10:20]

Patchset 1 (id:??) landed as
https://crrev.com/113bdcadf37631835e65cd60d5d1f8d0926ba5f6
Cr-Commit-Position: refs/heads/master@{#14597}