Allow transitioning to HAVE_METADATA before pipeline initialization completes.

webkit/media/webmediaplayer_proxy.cc

Index: webkit/media/webmediaplayer_proxy.cc
diff --git a/webkit/media/webmediaplayer_proxy.cc b/webkit/media/webmediaplayer_proxy.cc
index bac3d8b62bf3b1f94537a996f6e60e0177c8142c..acb59e858dbf8dbb820b91eaeb3a5ef3aef36424 100644
--- a/webkit/media/webmediaplayer_proxy.cc
+++ b/webkit/media/webmediaplayer_proxy.cc
@@ -89,12 +89,6 @@ void WebMediaPlayerProxy::Detach() {
   frame_provider_ = NULL;
 }
 
-void WebMediaPlayerProxy::PipelineInitializationCallback(
-    PipelineStatus status) {
-  render_loop_->PostTask(FROM_HERE, base::Bind(
-      &WebMediaPlayerProxy::PipelineInitializationTask, this, status));
-}
-
 void WebMediaPlayerProxy::PipelineSeekCallback(PipelineStatus status) {
   render_loop_->PostTask(FROM_HERE, base::Bind(
       &WebMediaPlayerProxy::PipelineSeekTask, this, status));
@@ -111,6 +105,12 @@ void WebMediaPlayerProxy::PipelineErrorCallback(PipelineStatus error) {
       &WebMediaPlayerProxy::PipelineErrorTask, this, error));
 }
 
+void WebMediaPlayerProxy::PipelineBufferingStateCallback(
+    media::Pipeline::BufferingState buffering_state) {
+  render_loop_->PostTask(FROM_HERE, base::Bind(
+      &WebMediaPlayerProxy::PipelineBufferingStateTask, this, buffering_state));
+}
+
 void WebMediaPlayerProxy::RepaintTask() {
   DCHECK(render_loop_->BelongsToCurrentThread());
   {
@@ -123,12 +123,6 @@ void WebMediaPlayerProxy::RepaintTask() {
   }
 }
 
-void WebMediaPlayerProxy::PipelineInitializationTask(PipelineStatus status) {
-  DCHECK(render_loop_->BelongsToCurrentThread());
-  if (webmediaplayer_)
-    webmediaplayer_->OnPipelineInitialize(status);
-}
-
 void WebMediaPlayerProxy::PipelineSeekTask(PipelineStatus status) {
   DCHECK(render_loop_->BelongsToCurrentThread());
   if (webmediaplayer_)
@@ -147,6 +141,13 @@ void WebMediaPlayerProxy::PipelineErrorTask(PipelineStatus error) {
     webmediaplayer_->OnPipelineError(error);
 }
 
+void WebMediaPlayerProxy::PipelineBufferingStateTask(
+    media::Pipeline::BufferingState buffering_state) {
+  DCHECK(render_loop_->BelongsToCurrentThread());
+  if (webmediaplayer_)
+    webmediaplayer_->OnPipelineBufferingState(buffering_state);
+}
+
 void WebMediaPlayerProxy::SetOpaqueTask(bool opaque) {
   DCHECK(render_loop_->BelongsToCurrentThread());
   if (webmediaplayer_)