Add Opus decode wrapper to media.

media/webm/webm_tracks_parser.cc

Index: media/webm/webm_tracks_parser.cc
diff --git a/media/webm/webm_tracks_parser.cc b/media/webm/webm_tracks_parser.cc
index 8a8864db05e20dece16c600045523b296f536abb..3fb7a0f81bf3c2a3ed33caac2f1420d0398aedab 100644
--- a/media/webm/webm_tracks_parser.cc
+++ b/media/webm/webm_tracks_parser.cc
@@ -138,7 +138,8 @@ bool WebMTracksParser::OnBinary(int id, const uint8* data, int size) {
 }
 
 bool WebMTracksParser::OnString(int id, const std::string& str) {
-  if (id == kWebMIdCodecID && str != "A_VORBIS" && str != "V_VP8") {
+  if (id == kWebMIdCodecID && str != "A_VORBIS" && str != "A_OPUS" &&
+      str != "V_VP8") {

[xhwang, 2012/12/14 08:41:48]

nit:

if (id == kWebMIdCodecID &&
    str != "A_VORBIS" && str != "A_OPUS" && str != "V_VP8") {

[Tom Finegan, 2012/12/14 20:21:34]

Done.

     MEDIA_LOG(log_cb_) << "Unexpected CodecID " << str;
     return false;
   }