Revert of Storing raw audio sink for default audio track.

Revert of Storing raw audio sink for default audio track. (patchset #7 id:120001 of https://codereview.chromium.org/1551813002/ )

Reason for revert:
tommi pointed out that using a refptr for the sink may cause issues. Will reland with a slightly different approach.

Original issue's description:
> Storing raw audio sink for default audio track.
>
> BUG=webrtc:5250
>
> Committed: https://crrev.com/e591f9377f33f3f725a30faecd1bef1a71fa6b99
> Cr-Commit-Position: refs/heads/master@{#11230}

TBR=pthatcher@webrtc.org,solenberg@webrtc.org,pbos@webrtc.org,tommi@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5250
Committed: https://crrev.com/2d110be77f14cab0bb51efe8b61d9c7a967d04cb
Cr-Commit-Position: refs/heads/master@{#11241}

[Taylor Brandstetter, 2016-01-13 20:00:03]

Created Revert of Storing raw audio sink for default audio track.

[commit-bot: I haz the power, 2016-01-13 20:00:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1588693002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1588693002/1

[commit-bot: I haz the power, 2016-01-13 20:00:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-13 20:00:35]

Description was changed from

==========
Revert of Storing raw audio sink for default audio track. (patchset #7 id:120001
of https://codereview.chromium.org/1551813002/ )

Reason for revert:
tommi pointed out that using a refptr for the sink may cause issues. Will reland
with a slightly different approach.

Original issue's description:
> Storing raw audio sink for default audio track.
> 
> BUG=webrtc:5250
> 
> Committed: https://crrev.com/e591f9377f33f3f725a30faecd1bef1a71fa6b99
> Cr-Commit-Position: refs/heads/master@{#11230}

TBR=pthatcher@webrtc.org,solenberg@webrtc.org,pbos@webrtc.org,tommi@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5250
==========

to

==========
Revert of Storing raw audio sink for default audio track. (patchset #7 id:120001
of https://codereview.chromium.org/1551813002/ )

Reason for revert:
tommi pointed out that using a refptr for the sink may cause issues. Will reland
with a slightly different approach.

Original issue's description:
> Storing raw audio sink for default audio track.
>
> BUG=webrtc:5250
>
> Committed: https://crrev.com/e591f9377f33f3f725a30faecd1bef1a71fa6b99
> Cr-Commit-Position: refs/heads/master@{#11230}

TBR=pthatcher@webrtc.org,solenberg@webrtc.org,pbos@webrtc.org,tommi@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5250

Committed: https://crrev.com/2d110be77f14cab0bb51efe8b61d9c7a967d04cb
Cr-Commit-Position: refs/heads/master@{#11241}
==========

[commit-bot: I haz the power, 2016-01-13 20:00:37]

Patchset 1 (id:??) landed as
https://crrev.com/2d110be77f14cab0bb51efe8b61d9c7a967d04cb
Cr-Commit-Position: refs/heads/master@{#11241}