media: Use native BufferingState in media mojo interfaces

media/mojo/services/mojo_renderer_service.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/mojo/services/mojo_renderer_service.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/optional.h"
@@ skipping 147 matching lines @@
   client_->OnEnded();
 }
 
 void MojoRendererService::OnStatisticsUpdate(const PipelineStatistics& stats) {
   DVLOG(3) << __FUNCTION__;
   client_->OnStatisticsUpdate(stats);
 }
 
 void MojoRendererService::OnBufferingStateChange(BufferingState state) {
   DVLOG(2) << __FUNCTION__ << "(" << state << ")";
-  client_->OnBufferingStateChange(static_cast<mojom::BufferingState>(state));
+  client_->OnBufferingStateChange(state);
 }
 
 void MojoRendererService::OnWaitingForDecryptionKey() {
   DVLOG(1) << __FUNCTION__;
   client_->OnWaitingForDecryptionKey();
 }
 
 void MojoRendererService::OnVideoNaturalSizeChange(const gfx::Size& size) {
   DVLOG(2) << __FUNCTION__ << "(" << size.ToString() << ")";
   client_->OnVideoNaturalSizeChange(size);
@@ skipping 89 matching lines @@
     // |renderer_| is likely not of type MediaPlayerRenderer.
     // This is an unexpected call, and the connection should be closed.
     mojo::ReportBadMessage("Unexpected call to InitiateScopedSurfaceRequest.");
     binding_->Close();
     return;
   }
 
   callback.Run(initiate_surface_request_cb_.Run());
 }
 }  // namespace media