Add Opus decode wrapper to media.

media/base/audio_decoder_config.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BASE_AUDIO_DECODER_CONFIG_H_
 #define MEDIA_BASE_AUDIO_DECODER_CONFIG_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "media/base/channel_layout.h"
 #include "media/base/media_export.h"
 
 namespace media {
 
 enum AudioCodec {
   // These values are histogrammed over time; do not change their ordinal
   // values.  When deleting a codec replace it with a dummy value; when adding a
   // codec, do so at the bottom (and update kAudioCodecMax).
   kUnknownAudioCodec = 0,
   kCodecAAC,
   kCodecMP3,
   kCodecPCM,
   kCodecVorbis,
+  kCodecOpus,

[xhwang, 2012/12/13 08:33:13]

I am not sure if this is okay given the comments in line 16-18

[fgalligan1, 2012/12/13 22:30:14]

I think you are right. I think this needs to go after kCodecPCM_S24BE. Probably
with a new comment above it.

[Tom Finegan, 2012/12/13 23:20:00]

Heh. I should have actually read the comments in here before making changes. :)
Thanks.

   // ChromiumOS and ChromeOS specific codecs.
   kCodecFLAC,
   // ChromeOS specific codecs.
   kCodecAMR_NB,
   kCodecAMR_WB,
   kCodecPCM_MULAW,
   kCodecGSM_MS,
   kCodecPCM_S16BE,
   kCodecPCM_S24BE,
   // DO NOT ADD RANDOM AUDIO CODECS!
@@ skipping 67 matching lines @@
   size_t extra_data_size_;
 
   bool is_encrypted_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioDecoderConfig);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_AUDIO_DECODER_CONFIG_H_