Add initial implementation of SourceBufferStream

media/base/buffers.h

Index: media/base/buffers.h
diff --git a/media/base/buffers.h b/media/base/buffers.h
index f4e42642b4f240ce961d987094d59e80365c5dcb..9077b7a841c3b91a8933c3036133df812254df3c 100644
--- a/media/base/buffers.h
+++ b/media/base/buffers.h
@@ -73,6 +73,13 @@ class MEDIA_EXPORT Buffer : public base::RefCountedThreadSafe<Buffer> {
     duration_ = duration;
   }
 
+  // TODO(vrk): Only ChunkDemuxer and friends care about these methods.
+  // Put these methods inside a derived class of Buffer?
+  bool IsKeyframe() const { return is_keyframe_; }
+  void SetKeyframe(bool is_keyframe) {

[acolwell GONE FROM CHROMIUM, 2012/04/26 00:52:34]

Could we get away with just providing this info via the constructor and do away
with the setter?

[vrk (LEFT CHROMIUM), 2012/04/27 23:19:30]

Done, but it's a little icky since I have to add a DataBuffer constructor as
well. Let me know if you still prefer it this way.

+    is_keyframe_ = is_keyframe;
+  }
+
  protected:
   friend class base::RefCountedThreadSafe<Buffer>;
   Buffer(base::TimeDelta timestamp, base::TimeDelta duration);
@@ -81,6 +88,7 @@ class MEDIA_EXPORT Buffer : public base::RefCountedThreadSafe<Buffer> {
  private:
   base::TimeDelta timestamp_;
   base::TimeDelta duration_;
+  bool is_keyframe_;
 
   DISALLOW_COPY_AND_ASSIGN(Buffer);
 };