Revert of Override the webrtc TaskQueue implementation.

Revert of Override the webrtc TaskQueue implementation. (patchset #3 id:40001 of https://codereview.chromium.org/2291033002/ )

Reason for revert:
Actually still breaks Android....

Original issue's description:
> Override the webrtc TaskQueue implementation.
> Since user32.dll may not be used withing Chrome's sandbox on win 8 at later, we need to override the TaskQueue implementation. This implementation uses base::Thread and the SingleTreadedTaskRunner to post tasks to the queue.
>
> BUG=webrtc:5687
> NOTRY=true
>
> Committed: https://crrev.com/e4eba5884297c0224b071a764dfa8a6236887747
> Cr-Commit-Position: refs/heads/master@{#415275}

TBR=tommi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5687
Committed: https://crrev.com/9da11463e3a843855f1d59ef6189c66e4b0e6ee2
Cr-Commit-Position: refs/heads/master@{#415276}

[perkj_chrome, 2016-08-30 12:41:46]

The CQ bit was checked by perkj@chromium.org

[perkj_chrome, 2016-08-30 12:41:46]

Created Revert of Override the webrtc TaskQueue implementation.

[commit-bot: I haz the power, 2016-08-30 12:42:15]

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

[commit-bot: I haz the power, 2016-08-30 12:43:12]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-30 12:45:23]

Description was changed from

==========
Revert of Override the webrtc TaskQueue implementation. (patchset #3 id:40001 of
https://codereview.chromium.org/2291033002/ )

Reason for revert:
Actually still breaks Android....

Original issue's description:
> Override the webrtc TaskQueue implementation.
> Since user32.dll may not be used withing Chrome's sandbox on win 8 at later,
we need to override the TaskQueue implementation. This implementation uses
base::Thread and the SingleTreadedTaskRunner to post tasks to the queue.
> 
> BUG=webrtc:5687
> NOTRY=true
> 
> Committed: https://crrev.com/e4eba5884297c0224b071a764dfa8a6236887747
> Cr-Commit-Position: refs/heads/master@{#415275}

TBR=tommi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5687
==========

to

==========
Revert of Override the webrtc TaskQueue implementation. (patchset #3 id:40001 of
https://codereview.chromium.org/2291033002/ )

Reason for revert:
Actually still breaks Android....

Original issue's description:
> Override the webrtc TaskQueue implementation.
> Since user32.dll may not be used withing Chrome's sandbox on win 8 at later,
we need to override the TaskQueue implementation. This implementation uses
base::Thread and the SingleTreadedTaskRunner to post tasks to the queue.
>
> BUG=webrtc:5687
> NOTRY=true
>
> Committed: https://crrev.com/e4eba5884297c0224b071a764dfa8a6236887747
> Cr-Commit-Position: refs/heads/master@{#415275}

TBR=tommi@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5687

Committed: https://crrev.com/9da11463e3a843855f1d59ef6189c66e4b0e6ee2
Cr-Commit-Position: refs/heads/master@{#415276}
==========

[commit-bot: I haz the power, 2016-08-30 12:45:24]

Patchset 1 (id:??) landed as
https://crrev.com/9da11463e3a843855f1d59ef6189c66e4b0e6ee2
Cr-Commit-Position: refs/heads/master@{#415276}