Revert of Reland Replace AudioFifo with a deque of AudioBus in ATR::AudioEncoder

Revert of Reland Replace AudioFifo with a deque of AudioBus in ATR::AudioEncoder (patchset #2 id:20001 of https://codereview.chromium.org/2881713002/ )

Reason for revert:
Suspected of causing content_unittests MediaRecorderHandlerTest.EncodeAudioFrames/2 to fail on Windows:

https://build.chromium.org/p/chromium.win/builders/Win7%20Tests%20%28dbg%29%281%29/builds/60080

Original issue's description:
> Reland Replace AudioFifo with a deque of AudioBus in ATR::AudioEncoder
> 
> Link to original CL: https://codereview.chromium.org/2854363002/
> 
> Original CL description:
> This CL uses a std::deque<std::unique_ptr<media::AudioBus>> instead
> of an AudioFifo, to avoid copying data needlessly.
> 
> The original CL was reverted due to failures in the build cycles as shown on:
> https://findit-for-me.appspot.com/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyRAsSDVdmU3VzcGVjdGVkQ0wiMWNocm9taXVtLzY3OGM3NGNmM2UxN2FhZWY5NTYyZWUxM2RmOGM4MDNlMWQwMTRmYzYM
> 
> The failure was caused as uninitialized memory was being read.
> 
> This reland CL zeroes out all channels of incoming audio bus if the deque is empty.
> 
> BUG=None
> 
> Review-Url: https://codereview.chromium.org/2881713002
> Cr-Commit-Position: refs/heads/master@{#472836}
> Committed: https://chromium.googlesource.com/chromium/src/+/8e3f09678fd2199649fdfde1bb9cc0ec55240309

TBR=mcasas@chromium.org,miu@chromium.org,c.padhi@samsung.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=None

Review-Url: https://codereview.chromium.org/2888043007
Cr-Commit-Position: refs/heads/master@{#472906}
Committed: https://chromium.googlesource.com/chromium/src/+/cb5adebb5e8db8146d7ad2fb5a8c6219561ae28c

[jbroman, 2017-05-18 19:41:05]

The CQ bit was checked by jbroman@chromium.org

[jbroman, 2017-05-18 19:41:05]

Created Revert of Reland Replace AudioFifo with a deque of AudioBus in
ATR::AudioEncoder

[commit-bot: I haz the power, 2017-05-18 19:42:45]

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, 2017-05-18 19:43:28]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1495136465237650, "parent_rev":
"732dbeaf182678e15e315d6586aec467efe24f17", "commit_rev":
"cb5adebb5e8db8146d7ad2fb5a8c6219561ae28c"}

[commit-bot: I haz the power, 2017-05-18 19:43:41]

Description was changed from

==========
Revert of Reland Replace AudioFifo with a deque of AudioBus in ATR::AudioEncoder
(patchset #2 id:20001 of https://codereview.chromium.org/2881713002/ )

Reason for revert:
Suspected of causing content_unittests
MediaRecorderHandlerTest.EncodeAudioFrames/2 to fail on Windows:

https://build.chromium.org/p/chromium.win/builders/Win7%20Tests%20%28dbg%29%2...

Original issue's description:
> Reland Replace AudioFifo with a deque of AudioBus in ATR::AudioEncoder
> 
> Link to original CL: https://codereview.chromium.org/2854363002/
> 
> Original CL description:
> This CL uses a std::deque<std::unique_ptr<media::AudioBus>> instead
> of an AudioFifo, to avoid copying data needlessly.
> 
> The original CL was reverted due to failures in the build cycles as shown on:
>
https://findit-for-me.appspot.com/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3Itb...
> 
> The failure was caused as uninitialized memory was being read.
> 
> This reland CL zeroes out all channels of incoming audio bus if the deque is
empty.
> 
> BUG=None
> 
> Review-Url: https://codereview.chromium.org/2881713002
> Cr-Commit-Position: refs/heads/master@{#472836}
> Committed:
https://chromium.googlesource.com/chromium/src/+/8e3f09678fd2199649fdfde1bb9c...

TBR=mcasas@chromium.org,miu@chromium.org,c.padhi@samsung.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=None
==========

to

==========
Revert of Reland Replace AudioFifo with a deque of AudioBus in ATR::AudioEncoder
(patchset #2 id:20001 of https://codereview.chromium.org/2881713002/ )

Reason for revert:
Suspected of causing content_unittests
MediaRecorderHandlerTest.EncodeAudioFrames/2 to fail on Windows:

https://build.chromium.org/p/chromium.win/builders/Win7%20Tests%20%28dbg%29%2...

Original issue's description:
> Reland Replace AudioFifo with a deque of AudioBus in ATR::AudioEncoder
> 
> Link to original CL: https://codereview.chromium.org/2854363002/
> 
> Original CL description:
> This CL uses a std::deque<std::unique_ptr<media::AudioBus>> instead
> of an AudioFifo, to avoid copying data needlessly.
> 
> The original CL was reverted due to failures in the build cycles as shown on:
>
https://findit-for-me.appspot.com/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3Itb...
> 
> The failure was caused as uninitialized memory was being read.
> 
> This reland CL zeroes out all channels of incoming audio bus if the deque is
empty.
> 
> BUG=None
> 
> Review-Url: https://codereview.chromium.org/2881713002
> Cr-Commit-Position: refs/heads/master@{#472836}
> Committed:
https://chromium.googlesource.com/chromium/src/+/8e3f09678fd2199649fdfde1bb9c...

TBR=mcasas@chromium.org,miu@chromium.org,c.padhi@samsung.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=None

Review-Url: https://codereview.chromium.org/2888043007
Cr-Commit-Position: refs/heads/master@{#472906}
Committed:
https://chromium.googlesource.com/chromium/src/+/cb5adebb5e8db8146d7ad2fb5a8c...
==========

[commit-bot: I haz the power, 2017-05-18 19:43:42]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/cb5adebb5e8db8146d7ad2fb5a8c...