media: Opus support for WebM in Media Source

media/base/audio_decoder_config.cc

Index: media/base/audio_decoder_config.cc
diff --git a/media/base/audio_decoder_config.cc b/media/base/audio_decoder_config.cc
index 38db05d3a54e1a7106da2d49a74b7085bdd5a05e..877c1c863f6c215d4c2789b0f7dbfc70c19d0888 100644
--- a/media/base/audio_decoder_config.cc
+++ b/media/base/audio_decoder_config.cc
@@ -19,7 +19,9 @@ AudioDecoderConfig::AudioDecoderConfig()
       channel_layout_(CHANNEL_LAYOUT_UNSUPPORTED),
       samples_per_second_(0),
       bytes_per_frame_(0),
-      is_encrypted_(false) {
+      is_encrypted_(false),
+      seek_pre_roll_(0),
+      codec_delay_(0) {
 }
 
 AudioDecoderConfig::AudioDecoderConfig(AudioCodec codec,
@@ -92,7 +94,9 @@ bool AudioDecoderConfig::Matches(const AudioDecoderConfig& config) const {
           (!extra_data() || !memcmp(extra_data(), config.extra_data(),
                                     extra_data_size())) &&
           (is_encrypted() == config.is_encrypted()) &&
-          (sample_format() == config.sample_format()));
+          (sample_format() == config.sample_format()) &&
+          (seek_pre_roll() == config.seek_pre_roll()) &&
+          (codec_delay() == config.codec_delay()));
 }
 
 }  // namespace media