Reland of Use TaskQueue in IncomingVideoStream

Reland of Use TaskQueue in IncomingVideoStream (patchset #1 id:1 of https://codereview.webrtc.org/2714393003/ )

Use TaskQueue in IncomingVideoStream instead of the PlatformThread + event timer approach.

TBR=mflodman@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7219, webrtc:7253
Reland of
https://chromium.googlesource.com/external/webrtc/+/686aa37382428bc667adff8cd6895674cae4e5fd (revert)
https://chromium.googlesource.com/external/webrtc/+/e2d1d6429557af4560a97581a5e282b54c742173 (original)

Review-Url: https://codereview.webrtc.org/2720773002
Cr-Commit-Position: refs/heads/master@{#16872}
Committed: https://chromium.googlesource.com/external/webrtc/+/ede0759c041715646f70ce4eb1fc85d69c963d18

[tommi, 2017-02-27 15:14:05]

Created Reland of Use TaskQueue in IncomingVideoStream

[tommi, 2017-02-27 15:15:41]

Description was changed from

==========
Reland of Use TaskQueue in IncomingVideoStream (patchset #1 id:1 of
https://codereview.webrtc.org/2714393003/ )

Reason for revert:
Reland now that Chromium has been updated.

Original issue's description:
> Revert of Use TaskQueue in IncomingVideoStream (patchset #10 id:320001 of
https://codereview.webrtc.org/2716473002/ )
> 
> Reason for revert:
> Reverting while fixing build issue in Chromium.
> 
> Original issue's description:
> > Use TaskQueue in IncomingVideoStream instead of the PlatformThread + event
timer approach.
> > 
> > BUG=webrtc:7219, webrtc:7253
> > 
> > Review-Url: https://codereview.webrtc.org/2716473002
> > Cr-Commit-Position: refs/heads/master@{#16860}
> > Committed:
https://chromium.googlesource.com/external/webrtc/+/e2d1d6429557af4560a97581a...
> 
> TBR=mflodman@webrtc.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:7219, webrtc:7253
> 
> Review-Url: https://codereview.webrtc.org/2714393003
> Cr-Commit-Position: refs/heads/master@{#16863}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/686aa37382428bc667adff8cd...

TBR=mflodman@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7219, webrtc:7253
==========

to

==========
Reland of Use TaskQueue in IncomingVideoStream (patchset #1 id:1 of
https://codereview.webrtc.org/2714393003/ )

Use TaskQueue in IncomingVideoStream instead of the PlatformThread + event timer
approach.

TBR=mflodman@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7219, webrtc:7253

Reland of
https://chromium.googlesource.com/external/webrtc/+/686aa37382428bc667adff8cd...
(revert)
https://chromium.googlesource.com/external/webrtc/+/e2d1d6429557af4560a97581a...
(original)
==========

[tommi, 2017-02-27 15:15:50]

The CQ bit was checked by tommi@webrtc.org

[commit-bot: I haz the power, 2017-02-27 15:16:03]

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, 2017-02-27 15:16:11]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488208550132210, "parent_rev":
"63bafd62f1316d496c6c207d253f24867d9b7fe5", "commit_rev":
"ede0759c041715646f70ce4eb1fc85d69c963d18"}

[commit-bot: I haz the power, 2017-02-27 15:16:13]

Description was changed from

==========
Reland of Use TaskQueue in IncomingVideoStream (patchset #1 id:1 of
https://codereview.webrtc.org/2714393003/ )

Use TaskQueue in IncomingVideoStream instead of the PlatformThread + event timer
approach.

TBR=mflodman@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7219, webrtc:7253

Reland of
https://chromium.googlesource.com/external/webrtc/+/686aa37382428bc667adff8cd...
(revert)
https://chromium.googlesource.com/external/webrtc/+/e2d1d6429557af4560a97581a...
(original)
==========

to

==========
Reland of Use TaskQueue in IncomingVideoStream (patchset #1 id:1 of
https://codereview.webrtc.org/2714393003/ )

Use TaskQueue in IncomingVideoStream instead of the PlatformThread + event timer
approach.

TBR=mflodman@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7219, webrtc:7253

Reland of
https://chromium.googlesource.com/external/webrtc/+/686aa37382428bc667adff8cd...
(revert)
https://chromium.googlesource.com/external/webrtc/+/e2d1d6429557af4560a97581a...
(original)

Review-Url: https://codereview.webrtc.org/2720773002
Cr-Commit-Position: refs/heads/master@{#16872}
Committed:
https://chromium.googlesource.com/external/webrtc/+/ede0759c041715646f70ce4eb...
==========

[commit-bot: I haz the power, 2017-02-27 15:16:14]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/ede0759c041715646f70ce4eb...

[mflodman, 2017-02-27 15:25:08]

lgtm