Revert of WebRtcVoiceEngine: Use AudioDecoderFactory to generate recv codecs.

Revert of WebRtcVoiceEngine: Use AudioDecoderFactory to generate recv codecs. (patchset #10 id:200001 of https://codereview.webrtc.org/2072753002/ )

Reason for revert:
For some reason, payload_type_mapper.cc is not being picked up in Chrome builds, leading to undefined references. Reverting while investigating.

Original issue's description:
> WebRtcVoiceEngine: Use AudioDecoderFactory to generate recv codecs.
>
> Changed WebRtcVoiceEngine to present receive codecs from the formats
> provided by its decoder factory. Added supported formats to
> BuiltinAudioDecoderFactory. Added helper functions for creating some
> simple decoder factories for mocking.
>
> Created a PayloadTypeMapper for assigning payload types to formats. I
> think we'll eventually want to use this further up, or possibly in
> both the audio and video sides. It would be best if the engines didn't
> have to talk payload types at all, but it might be more difficult to
> get around when payload types depend on each-other, like the RTX
> codecs for video.
>
> This CL also includes some changes to rtc::Optional. I've put them in
> a separate CL that should (or should not) land first, making these
> changes void.
> See: https://codereview.webrtc.org/2072713002/
>
> BUG=webrtc:5805
>
> Committed: https://crrev.com/95eb1ba0db79d8fd134ae61b0a24648598684e8a
> Cr-Commit-Position: refs/heads/master@{#13459}

TBR=ivoc@webrtc.org,tina.legrand@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:5805
Committed: https://crrev.com/f93be584f740854a14a752e5c39947b4ffabd7e5
Cr-Commit-Position: refs/heads/master@{#13460}

[ossu, 2016-07-13 13:31:15]

The CQ bit was checked by ossu@webrtc.org

[ossu, 2016-07-13 13:31:16]

Created Revert of WebRtcVoiceEngine: Use AudioDecoderFactory to generate recv
codecs.

[commit-bot: I haz the power, 2016-07-13 13:31:25]

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, 2016-07-13 13:31:35]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-13 13:31:37]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-07-13 13:31:45]

Description was changed from

==========
Revert of WebRtcVoiceEngine: Use AudioDecoderFactory to generate recv codecs.
(patchset #10 id:200001 of https://codereview.webrtc.org/2072753002/ )

Reason for revert:
For some reason, payload_type_mapper.cc is not being picked up in Chrome builds,
leading to undefined references. Reverting while investigating.

Original issue's description:
> WebRtcVoiceEngine: Use AudioDecoderFactory to generate recv codecs.
> 
> Changed WebRtcVoiceEngine to present receive codecs from the formats
> provided by its decoder factory. Added supported formats to
> BuiltinAudioDecoderFactory. Added helper functions for creating some
> simple decoder factories for mocking.
> 
> Created a PayloadTypeMapper for assigning payload types to formats. I
> think we'll eventually want to use this further up, or possibly in
> both the audio and video sides. It would be best if the engines didn't
> have to talk payload types at all, but it might be more difficult to
> get around when payload types depend on each-other, like the RTX
> codecs for video.
> 
> This CL also includes some changes to rtc::Optional. I've put them in
> a separate CL that should (or should not) land first, making these
> changes void.
> See: https://codereview.webrtc.org/2072713002/
> 
> BUG=webrtc:5805
> 
> Committed: https://crrev.com/95eb1ba0db79d8fd134ae61b0a24648598684e8a
> Cr-Commit-Position: refs/heads/master@{#13459}

TBR=ivoc@webrtc.org,tina.legrand@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:5805
==========

to

==========
Revert of WebRtcVoiceEngine: Use AudioDecoderFactory to generate recv codecs.
(patchset #10 id:200001 of https://codereview.webrtc.org/2072753002/ )

Reason for revert:
For some reason, payload_type_mapper.cc is not being picked up in Chrome builds,
leading to undefined references. Reverting while investigating.

Original issue's description:
> WebRtcVoiceEngine: Use AudioDecoderFactory to generate recv codecs.
>
> Changed WebRtcVoiceEngine to present receive codecs from the formats
> provided by its decoder factory. Added supported formats to
> BuiltinAudioDecoderFactory. Added helper functions for creating some
> simple decoder factories for mocking.
>
> Created a PayloadTypeMapper for assigning payload types to formats. I
> think we'll eventually want to use this further up, or possibly in
> both the audio and video sides. It would be best if the engines didn't
> have to talk payload types at all, but it might be more difficult to
> get around when payload types depend on each-other, like the RTX
> codecs for video.
>
> This CL also includes some changes to rtc::Optional. I've put them in
> a separate CL that should (or should not) land first, making these
> changes void.
> See: https://codereview.webrtc.org/2072713002/
>
> BUG=webrtc:5805
>
> Committed: https://crrev.com/95eb1ba0db79d8fd134ae61b0a24648598684e8a
> Cr-Commit-Position: refs/heads/master@{#13459}

TBR=ivoc@webrtc.org,tina.legrand@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:5805

Committed: https://crrev.com/f93be584f740854a14a752e5c39947b4ffabd7e5
Cr-Commit-Position: refs/heads/master@{#13460}
==========

[commit-bot: I haz the power, 2016-07-13 13:31:46]

Patchset 1 (id:??) landed as
https://crrev.com/f93be584f740854a14a752e5c39947b4ffabd7e5
Cr-Commit-Position: refs/heads/master@{#13460}