Handle config changes for MSE on android

webkit/renderer/media/android/media_source_delegate.cc

 // Copyright 2013 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.
 
 #include "webkit/renderer/media/android/media_source_delegate.h"
 
 #include "base/message_loop_proxy.h"
 #include "base/strings/string_number_conversions.h"
 #include "media/base/android/demuxer_stream_player_params.h"
 #include "media/base/bind_to_loop.h"
@@ skipping 291 matching lines @@
   }
   NotifyDemuxerReady("");
 }
 
 void MediaSourceDelegate::OnDemuxerStopDone() {
   DVLOG(1) << "MediaSourceDelegate::OnDemuxerStopDone() : " << player_id_;
   chunk_demuxer_.reset();
   delete this;
 }
 
+void MediaSourceDelegate::OnMediaConfigRequest() {
+  NotifyDemuxerReady("");
+}
+
 void MediaSourceDelegate::NotifyDemuxerReady(const std::string& key_system) {
   MediaPlayerHostMsg_DemuxerReady_Params params;
   DemuxerStream* audio_stream = chunk_demuxer_->GetStream(DemuxerStream::AUDIO);
   if (audio_stream) {
     const media::AudioDecoderConfig& config =
         audio_stream->audio_decoder_config();
     params.audio_codec = config.codec();
     params.audio_channels =
         media::ChannelLayoutToChannelCount(config.channel_layout());
     params.audio_sampling_rate = config.samples_per_second();
@@ skipping 45 matching lines @@
 }
 
 scoped_ptr<media::TextTrack> MediaSourceDelegate::OnAddTextTrack(
     media::TextKind kind,
     const std::string& label,
     const std::string& language) {
   return scoped_ptr<media::TextTrack>();
 }
 
 }  // namespace webkit_media