media: Opus support for WebM in Media Source

media/filters/stream_parser_factory.cc

Index: media/filters/stream_parser_factory.cc
diff --git a/media/filters/stream_parser_factory.cc b/media/filters/stream_parser_factory.cc
index 25db8f067b34cfbe3f35176c449ea5898a4337e7..ae59b9cd7b73dd83170748f14730bc4d0b48765f 100644
--- a/media/filters/stream_parser_factory.cc
+++ b/media/filters/stream_parser_factory.cc
@@ -37,6 +37,7 @@ struct CodecInfo {
     HISTOGRAM_MPEG2AAC,
     HISTOGRAM_MPEG4AAC,
     HISTOGRAM_EAC3,
+    HISTOGRAM_OPUS,
     HISTOGRAM_MAX  // Must be the last entry.
   };
 
@@ -62,16 +63,20 @@ static const CodecInfo kVP9CodecInfo = { "vp9", CodecInfo::VIDEO, NULL,
                                          CodecInfo::HISTOGRAM_VP9 };
 static const CodecInfo kVorbisCodecInfo = { "vorbis", CodecInfo::AUDIO, NULL,
                                             CodecInfo::HISTOGRAM_VORBIS };
+static const CodecInfo kOpusCodecInfo = { "opus", CodecInfo::AUDIO, NULL,
+                                          CodecInfo::HISTOGRAM_OPUS };
 
 static const CodecInfo* kVideoWebMCodecs[] = {
   &kVP8CodecInfo,
   &kVP9CodecInfo,
   &kVorbisCodecInfo,
+  &kOpusCodecInfo,
   NULL
 };
 
 static const CodecInfo* kAudioWebMCodecs[] = {
   &kVorbisCodecInfo,
+  &kOpusCodecInfo,
   NULL
 };