Use data pipe for encoded buffers in MojoAudioDecoder

media/mojo/services/mojo_audio_decoder_service.h

Index: media/mojo/services/mojo_audio_decoder_service.h
diff --git a/media/mojo/services/mojo_audio_decoder_service.h b/media/mojo/services/mojo_audio_decoder_service.h
index 756e19c177f99740a7dddbf4b1165435b8d9ec2a..558d0eb590c1f25f5d70e074c9c8897f2f6c5319 100644
--- a/media/mojo/services/mojo_audio_decoder_service.h
+++ b/media/mojo/services/mojo_audio_decoder_service.h
@@ -11,6 +11,7 @@
 #include "media/base/audio_decoder.h"
 #include "media/mojo/interfaces/audio_decoder.mojom.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
+#include "mojo/public/cpp/system/data_pipe.h"
 
 namespace media {
 
@@ -28,6 +29,8 @@ class MojoAudioDecoderService : public interfaces::AudioDecoder {
                   int32_t cdm_id,
                   const InitializeCallback& callback) final;
 
+  void SetDataSource(mojo::ScopedDataPipeConsumerHandle receive_pipe) final;
+
   void Decode(interfaces::DecoderBufferPtr buffer,
               const DecodeCallback& callback) final;
 
@@ -55,6 +58,9 @@ class MojoAudioDecoderService : public interfaces::AudioDecoder {
   // communication channel, i.e. the pipe.
   mojo::StrongBinding<interfaces::AudioDecoder> binding_;
 
+  // DataPipe for serializing the data section of DecoderBuffer.
+  mojo::ScopedDataPipeConsumerHandle consumer_handle_;
+
   // The AudioDecoder that does actual decoding work.
   scoped_ptr<media::AudioDecoder> decoder_;