Move host resource from the proxy to the shared_impl.

ppapi/proxy/ppb_testing_proxy.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 "ppapi/proxy/ppb_testing_proxy.h"
 
 #include "base/message_loop.h"
 #include "ppapi/c/dev/ppb_testing_dev.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/plugin_resource.h"
 #include "ppapi/proxy/plugin_resource_tracker.h"
 #include "ppapi/proxy/ppapi_messages.h"
 
+using ppapi::HostResource;
+
 namespace pp {
 namespace proxy {
 
 namespace {
 
 PP_Bool ReadImageData(PP_Resource graphics_2d,
                       PP_Resource image,
                       const PP_Point* top_left) {
   PluginResource* image_object = PluginResourceTracker::GetInstance()->
       GetResourceObject(image);
@@ skipping 102 matching lines @@
   ppb_testing_target()->QuitMessageLoop(instance);
 }
 
 void PPB_Testing_Proxy::OnMsgGetLiveObjectsForInstance(PP_Instance instance,
                                                        uint32_t* result) {
   *result = ppb_testing_target()->GetLiveObjectsForInstance(instance);
 }
 
 }  // namespace proxy
 }  // namespace pp