AcmReceiver: Ask NetEq to delete all decoders at once instead of one by one

AcmReceiver: Ask NetEq to delete all decoders at once instead of one by one

It requires a new NetEq method, but it can no longer fail. And we no
longer need to use AcmReceiver::decoders_, which we're trying to
eliminate.

BUG=webrtc:5801
Committed: https://crrev.com/f6232b43a176e1717354b671a0a52b887d70de59
Cr-Commit-Position: refs/heads/master@{#14275}

[kwiberg-webrtc, 2016-09-16 11:03:11]

kwiberg@webrtc.org changed reviewers:
+ henrik.lundin@webrtc.org, ossu@webrtc.org

[ossu, 2016-09-16 11:42:01]

lgtm

[kwiberg-webrtc, 2016-09-17 16:57:07]

The CQ bit was checked by kwiberg@webrtc.org

[kwiberg-webrtc, 2016-09-17 16:57:08]

The patchset sent to the CQ was uploaded after l-g-t-m from ossu@webrtc.org
Link to the patchset: https://codereview.webrtc.org/2342313002/#ps20001 (title:
"rebase")

[commit-bot: I haz the power, 2016-09-17 16:57:18]

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, 2016-09-17 17:45:24]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-09-17 17:45:31]

Description was changed from

==========
AcmReceiver: Ask NetEq to delete all decoders at once instead of one by one

It requires a new NetEq method, but it can no longer fail. And we no
longer need to use AcmReceiver::decoders_, which we're trying to
eliminate.

BUG=webrtc:5801
==========

to

==========
AcmReceiver: Ask NetEq to delete all decoders at once instead of one by one

It requires a new NetEq method, but it can no longer fail. And we no
longer need to use AcmReceiver::decoders_, which we're trying to
eliminate.

BUG=webrtc:5801

Committed: https://crrev.com/f6232b43a176e1717354b671a0a52b887d70de59
Cr-Commit-Position: refs/heads/master@{#14275}
==========

[commit-bot: I haz the power, 2016-09-17 17:45:32]

Patchset 2 (id:??) landed as
https://crrev.com/f6232b43a176e1717354b671a0a52b887d70de59
Cr-Commit-Position: refs/heads/master@{#14275}

[kwiberg-webrtc, 2016-09-18 12:33:26]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.webrtc.org/2349973002/ by kwiberg@webrtc.org.

The reason for reverting is: Seems to have broken Chromium tests..