media: Enable Opus support in Clank <video> and MSE

content/renderer/media/android/media_source_delegate.cc

Index: content/renderer/media/android/media_source_delegate.cc
diff --git a/content/renderer/media/android/media_source_delegate.cc b/content/renderer/media/android/media_source_delegate.cc
index e7c6131f753e1449f0e509d8babd72b9fecc603a..b36f7f81043084ec197b94a9fe5c3679e41b680d 100644
--- a/content/renderer/media/android/media_source_delegate.cc
+++ b/content/renderer/media/android/media_source_delegate.cc
@@ -736,6 +736,10 @@ bool MediaSourceDelegate::GetDemuxerConfigFromStream(
     configs->is_audio_encrypted = config.is_encrypted();
     configs->audio_extra_data = std::vector<uint8>(
         config.extra_data(), config.extra_data() + config.extra_data_size());
+    configs->audio_codec_delay_ns = static_cast<int64_t>(
+        config.codec_delay()  * (1000000000.0 / config.samples_per_second()));

[Tom Finegan, 2015/01/22 02:35:14]

Time::kNanosecondsPerSecond ?

[vignesh, 2015/01/22 21:29:50]

Done.

+    configs->audio_seek_preroll_ns =
+        config.seek_preroll().InMicroseconds() * 1000;

[Tom Finegan, 2015/01/22 02:35:14]

Time::kNanosecondsPerMicrosecond ?

[vignesh, 2015/01/22 21:29:50]

Done.

     return true;
   }
   if (!is_audio && video_stream_) {