Allow transitioning to HAVE_METADATA before pipeline initialization completes.

webkit/media/webmediaplayer_impl.h

Index: webkit/media/webmediaplayer_impl.h
diff --git a/webkit/media/webmediaplayer_impl.h b/webkit/media/webmediaplayer_impl.h
index d09a961f15eed69d75ea9318b39c4ff84b063d49..47bb12df6e2261d26a9c2ef445ef53ae459a287e 100644
--- a/webkit/media/webmediaplayer_impl.h
+++ b/webkit/media/webmediaplayer_impl.h
@@ -226,10 +226,11 @@ class WebMediaPlayerImpl
 
   void Repaint();
 
-  void OnPipelineInitialize(media::PipelineStatus status);
   void OnPipelineSeek(media::PipelineStatus status);
   void OnPipelineEnded(media::PipelineStatus status);
   void OnPipelineError(media::PipelineStatus error);
+  void OnPipelineBufferingState(
+      media::Pipeline::BufferingState buffering_state);
   void OnDemuxerOpened();
   void OnKeyAdded(const std::string& key_system, const std::string& session_id);
   void OnKeyError(const std::string& key_system,
@@ -341,6 +342,8 @@ class WebMediaPlayerImpl
   // The decryptor that manages decryption keys and decrypts encrypted frames.
   ProxyDecryptor decryptor_;
 
+  bool starting_;
+
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerImpl);
 };