Implement proper synchronization between HW video decode IPC and CommandBuffer.

webkit/plugins/ppapi/mock_plugin_delegate.cc

 // Copyright (c) 2011 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 "webkit/plugins/ppapi/mock_plugin_delegate.h"
 
 #include "base/message_loop_proxy.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/shared_impl/ppapi_preferences.h"
 
@@ skipping 28 matching lines @@
   return NULL;
 }
 
 MockPluginDelegate::PlatformContext3D* MockPluginDelegate::CreateContext3D() {
   return NULL;
 }
 
 MockPluginDelegate::PlatformVideoDecoder*
 MockPluginDelegate::CreateVideoDecoder(
     media::VideoDecodeAccelerator::Client* client,
-    int command_buffer_route_id) {
+    int32 command_buffer_route_id,
+    gpu::CommandBufferHelper* cmd_buffer_helper) {
   return NULL;
 }
 
 MockPluginDelegate::PlatformAudio* MockPluginDelegate::CreateAudio(
     uint32_t sample_rate,
     uint32_t sample_count,
     PlatformAudio::Client* client) {
   return NULL;
 }
 
@@ skipping 192 matching lines @@
     uint32_t size) {
   return NULL;
 }
 
 ::ppapi::Preferences MockPluginDelegate::GetPreferences() {
   return ::ppapi::Preferences();
 }
 
 }  // namespace ppapi
 }  // namespace webkit