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 d045faf154402c4126cd3b9dbafc8aa24c20a802..720b013dc88dedabf8995c386bfd9eafc677344e 100644
--- a/webkit/media/webmediaplayer_impl.h
+++ b/webkit/media/webmediaplayer_impl.h
@@ -230,6 +230,7 @@ class WebMediaPlayerImpl
   void OnPipelineSeek(media::PipelineStatus status);
   void OnPipelineEnded(media::PipelineStatus status);
   void OnPipelineError(media::PipelineStatus error);
+  void OnPipelineReadyState(media::Pipeline::ReadyState readyState);
   void OnDemuxerOpened();
   void OnKeyAdded(const std::string& key_system, const std::string& session_id);
   void OnKeyError(const std::string& key_system,
@@ -340,6 +341,8 @@ class WebMediaPlayerImpl
   // The decryptor that manages decryption keys and decrypts encrypted frames.
   ProxyDecryptor decryptor_;
 
+  bool starting_;
+
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerImpl);
 };