Define AudioBuffer and VideoFrame for mojo

media/base/audio_buffer.h

Index: media/base/audio_buffer.h
diff --git a/media/base/audio_buffer.h b/media/base/audio_buffer.h
index 63390d4781cacca98c636d465b0e75c28fecd50f..40e61c2e4889f2e0bcff99768a0c9d1eb44050a5 100644
--- a/media/base/audio_buffer.h
+++ b/media/base/audio_buffer.h
@@ -15,9 +15,20 @@
 #include "media/base/media_export.h"
 #include "media/base/sample_format.h"
 
+namespace mojo {
+template <typename T, typename U>
+struct TypeConverter;
+template <typename T>
+class StructPtr;
+};
+
 namespace media {
 class AudioBus;
 
+namespace interfaces {
+class AudioBuffer;
+}
+
 // An audio buffer that takes a copy of the data passed to it, holds it, and
 // copies it into an AudioBus when needed. Also supports an end of stream
 // marker.
@@ -122,6 +133,8 @@ class MEDIA_EXPORT AudioBuffer
 
  private:
   friend class base::RefCountedThreadSafe<AudioBuffer>;
+  friend struct mojo::TypeConverter<mojo::StructPtr<interfaces::AudioBuffer>,
+                                    scoped_refptr<AudioBuffer>>;

[xhwang, 2015/11/23 22:22:18]

Add a comment why we need this friend here.

[jrummell, 2015/11/24 02:37:53]

Done.

 
   // Allocates aligned contiguous buffer to hold all channel data (1 block for
   // interleaved data, |channel_count| blocks for planar data), copies
@@ -151,6 +164,7 @@ class MEDIA_EXPORT AudioBuffer
 
   // Contiguous block of channel data.
   scoped_ptr<uint8, base::AlignedFreeDeleter> data_;
+  size_t data_size_;
 
   // For planar data, points to each channels data.
   std::vector<uint8*> channel_data_;