Add template SyncCall() to PluginResource.

ppapi/proxy/flash_resource.cc

 // 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.
 
 #include "ppapi/proxy/flash_resource.h"
 
 #include "ipc/ipc_message.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/proxy/dispatch_reply_message.h"
 #include "ppapi/proxy/ppapi_messages.h"
@@ skipping 21 matching lines @@
     const PP_ArrayOutput& devices) {
   ArrayWriter output;
   output.set_pp_array_output(devices);
   if (!output.is_valid())
     return PP_ERROR_BADARGUMENT;
 
   thunk::EnterResource<thunk::PPB_VideoCapture_API> enter(video_capture, true);
   if (enter.failed())
     return PP_ERROR_NOINTERFACE;
 
-  IPC::Message reply;
   std::vector<ppapi::DeviceRefData> device_ref_data;
-  int32_t result = CallRendererSync(
-      PpapiHostMsg_Flash_EnumerateVideoCaptureDevices(
-          enter.resource()->host_resource()), &reply);
+  int32_t result =
+      SyncCall<PpapiPluginMsg_Flash_EnumerateVideoCaptureDevicesReply>(
+          RENDERER,
+          PpapiHostMsg_Flash_EnumerateVideoCaptureDevices(
+              enter.resource()->host_resource()),
+          &device_ref_data);
   if (result != PP_OK)
     return result;
-  PpapiPluginMsg_Flash_EnumerateVideoCaptureDevicesReply::Schema::Param p;
-  if (!PpapiPluginMsg_Flash_EnumerateVideoCaptureDevicesReply::Read(&reply, &p))
-    return PP_ERROR_FAILED;
-  device_ref_data = p.a;
 
   std::vector<scoped_refptr<Resource> > device_resources;
   for (size_t i = 0; i < device_ref_data.size(); ++i) {
     scoped_refptr<Resource> resource(new PPB_DeviceRef_Shared(
         OBJECT_IS_PROXY, instance, device_ref_data[i]));
     device_resources.push_back(resource);
   }
 
   if (!output.StoreResourceVector(device_resources))
     return PP_ERROR_FAILED;
 
   return PP_OK;
 }
 
 }  // namespace proxy
 }  // namespace ppapi