PPAPI: Make blocking completion callbacks work.

ppapi/shared_impl/ppb_video_decoder_shared.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
 #ifndef PPAPI_SHARED_IMPL_PPB_VIDEO_DECODER_SHARED_H_
 #define PPAPI_SHARED_IMPL_PPB_VIDEO_DECODER_SHARED_H_
 
 #include <map>
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 21 matching lines @@
   explicit PPB_VideoDecoder_Shared(const HostResource& host_resource);
   virtual ~PPB_VideoDecoder_Shared();
 
   // Resource overrides.
   virtual thunk::PPB_VideoDecoder_API* AsPPB_VideoDecoder_API() OVERRIDE;
 
   // PPB_VideoDecoder_API implementation.
   virtual void Destroy() OVERRIDE;
 
  protected:
-  bool SetFlushCallback(PP_CompletionCallback callback);
-  bool SetResetCallback(PP_CompletionCallback callback);
-  bool SetBitstreamBufferCallback(
-      int32 bitstream_buffer_id, PP_CompletionCallback callback);
+  bool SetFlushCallback(scoped_refptr<TrackedCallback> callback);
+  bool SetResetCallback(scoped_refptr<TrackedCallback> callback);
+  bool SetBitstreamBufferCallback(int32 bitstream_buffer_id,
+                                  scoped_refptr<TrackedCallback> callback);
 
   void RunFlushCallback(int32 result);
   void RunResetCallback(int32 result);
   void RunBitstreamBufferCallback(int32 bitstream_buffer_id, int32 result);
 
   // Tell command buffer to process all commands it has received so far.
   void FlushCommandBuffer();
 
   // Initialize the underlying decoder.
   void InitCommon(PP_Resource graphics_context,
@@ skipping 17 matching lines @@
   // In the out-of-process case, Graphics3D's gles2_impl() exists in the plugin
   // process only, so gles2_impl_ is NULL in that case.
   gpu::gles2::GLES2Implementation* gles2_impl_;
 
   DISALLOW_COPY_AND_ASSIGN(PPB_VideoDecoder_Shared);
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_PPB_VIDEO_DECODER_SHARED_H_