Revert of Support adding and removing MediaRecorder to camera 2 session.

Revert of Support adding and removing MediaRecorder to camera 2 session. (patchset #5 id:80001 of https://codereview.webrtc.org/2833773003/ )

Reason for revert:
Breaks external bot

Original issue's description:
> Support adding and removing MediaRecorder to camera 2 session.
> 
> Camera 1 API is not supported.
> 
> BUG=b/36684011
> 
> Review-Url: https://codereview.webrtc.org/2833773003
> Cr-Commit-Position: refs/heads/master@{#17901}
> Committed: https://chromium.googlesource.com/external/webrtc/+/2fc04769faec0031a202963eaeb602420a082c07

TBR=sakal@webrtc.org,glaznev@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=b/36684011

Review-Url: https://codereview.webrtc.org/2844233002
Cr-Commit-Position: refs/heads/master@{#17905}
Committed: https://chromium.googlesource.com/external/webrtc/+/6702739862e292f3556a9e63c71367f49c3895b4

[magjed_webrtc, 2017-04-27 09:34:10]

The CQ bit was checked by magjed@webrtc.org

[magjed_webrtc, 2017-04-27 09:34:10]

Created Revert of Support adding and removing MediaRecorder to camera 2 session.

[commit-bot: I haz the power, 2017-04-27 09:34:17]

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, 2017-04-27 09:34:21]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1493285650605190, "parent_rev":
"20a4b3fb2ae5502488739f852aa73ba6ab26f7ec", "commit_rev":
"6702739862e292f3556a9e63c71367f49c3895b4"}

[commit-bot: I haz the power, 2017-04-27 09:34:24]

Description was changed from

==========
Revert of Support adding and removing MediaRecorder to camera 2 session.
(patchset #5 id:80001 of https://codereview.webrtc.org/2833773003/ )

Reason for revert:
Breaks external bot

Original issue's description:
> Support adding and removing MediaRecorder to camera 2 session.
> 
> Camera 1 API is not supported.
> 
> BUG=b/36684011
> 
> Review-Url: https://codereview.webrtc.org/2833773003
> Cr-Commit-Position: refs/heads/master@{#17901}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/2fc04769faec0031a202963ea...

TBR=sakal@webrtc.org,glaznev@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=b/36684011
==========

to

==========
Revert of Support adding and removing MediaRecorder to camera 2 session.
(patchset #5 id:80001 of https://codereview.webrtc.org/2833773003/ )

Reason for revert:
Breaks external bot

Original issue's description:
> Support adding and removing MediaRecorder to camera 2 session.
> 
> Camera 1 API is not supported.
> 
> BUG=b/36684011
> 
> Review-Url: https://codereview.webrtc.org/2833773003
> Cr-Commit-Position: refs/heads/master@{#17901}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/2fc04769faec0031a202963ea...

TBR=sakal@webrtc.org,glaznev@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=b/36684011

Review-Url: https://codereview.webrtc.org/2844233002
Cr-Commit-Position: refs/heads/master@{#17905}
Committed:
https://chromium.googlesource.com/external/webrtc/+/6702739862e292f3556a9e63c...
==========

[commit-bot: I haz the power, 2017-04-27 09:34:25]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/6702739862e292f3556a9e63c...

[AlexG, 2017-04-27 20:38:21]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.webrtc.org/2844393002/ by glaznev@webrtc.org.

The reason for reverting is: Revert "Revert of Support adding and removing
MediaRecorder to camera 2 session. (patchset #5 id:80001 of
https://codereview.webrtc.org/2833773003/ )"

Will fix external bots by cherry picking this CL and updating external functions
which depend on CameraVideoCapturer interface.