Introduce a client minimum picture pool size

media/video/video_decode_accelerator.h

Index: media/video/video_decode_accelerator.h
diff --git a/media/video/video_decode_accelerator.h b/media/video/video_decode_accelerator.h
index 53e18a786d569a4ce6565cd43eb795ab545cf186..4371a5404949afa6fc6b05bae62c510f17556a9d 100644
--- a/media/video/video_decode_accelerator.h
+++ b/media/video/video_decode_accelerator.h
@@ -97,9 +97,14 @@ class MEDIA_EXPORT VideoDecodeAccelerator {
   // initialization is successful.
   // Parameters:
   //  |profile| is the video stream's format profile.
+  //  |min_picture_count| is the minimum number of picture buffers needed for
+  //  playback. The decoder should allocate at least this number.
   //  |client| is the client of this video decoder.  The provided pointer must
   //  be valid until Destroy() is called.
-  virtual bool Initialize(VideoCodecProfile profile, Client* client) = 0;
+  virtual bool Initialize(
+      VideoCodecProfile profile,
+      uint32 min_picture_count,
+      Client* client) = 0;
 
   // Decodes given bitstream buffer that contains at most one frame.  Once
   // decoder is done with processing |bitstream_buffer| it will call