Migrate Graphics2D to new design.

ppapi/proxy/ppb_testing_proxy.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/ppb_testing_proxy.h"
 
 #include "base/message_loop.h"
 #include "ppapi/c/dev/ppb_testing_dev.h"
 #include "ppapi/proxy/enter_proxy.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/ppapi_globals.h"
 #include "ppapi/shared_impl/proxy_lock.h"
 #include "ppapi/shared_impl/resource.h"
 #include "ppapi/shared_impl/resource_tracker.h"
 #include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppb_graphics_2d_api.h"
 #include "ppapi/thunk/ppb_input_event_api.h"
 
 using ppapi::thunk::EnterInstance;
+using ppapi::thunk::EnterResource;
 using ppapi::thunk::EnterResourceNoLock;
+using ppapi::thunk::PPB_Graphics2D_API;
 using ppapi::thunk::PPB_InputEvent_API;
 
 namespace ppapi {
 namespace proxy {
 
 namespace {
 
 PP_Bool ReadImageData(PP_Resource graphics_2d,
                       PP_Resource image,
                       const PP_Point* top_left) {
   ProxyAutoLock lock;
   Resource* image_object =
       PpapiGlobals::Get()->GetResourceTracker()->GetResource(image);
   if (!image_object)
     return PP_FALSE;
   Resource* graphics_2d_object =
       PpapiGlobals::Get()->GetResourceTracker()->GetResource(graphics_2d);
   if (!graphics_2d_object ||
       image_object->pp_instance() != graphics_2d_object->pp_instance())
     return PP_FALSE;
 
-  PluginDispatcher* dispatcher = PluginDispatcher::GetForInstance(
-      image_object->pp_instance());
-  if (!dispatcher)
+  EnterResource<PPB_Graphics2D_API> enter(graphics_2d, true);
+  if (enter.failed())
     return PP_FALSE;
-
-  PP_Bool result = PP_FALSE;
-  dispatcher->Send(new PpapiHostMsg_PPBTesting_ReadImageData(
-      API_ID_PPB_TESTING, graphics_2d_object->host_resource(),
-      image_object->host_resource(), *top_left, &result));
-  return result;
+  const HostResource& host_image = image_object->host_resource();
+  return enter.object()->ReadImageData(host_image.host_resource(), top_left) ?
+      PP_TRUE : PP_FALSE;
 }
 
 void RunMessageLoop(PP_Instance instance) {
   MessageLoop::ScopedNestableTaskAllower allow(MessageLoop::current());
   // TODO(dmichael): We should probably assert that this is the main thread.
   MessageLoop::current()->Run();
 }
 
 void QuitMessageLoop(PP_Instance instance) {
   // TODO(dmichael): We should probably assert that this is the main thread.
@@ skipping 138 matching lines @@
     PP_Instance instance,
     const InputEventData& input_event) {
   scoped_refptr<PPB_InputEvent_Shared> input_event_impl(
       new PPB_InputEvent_Shared(OBJECT_IS_PROXY, instance, input_event));
   ppb_testing_impl_->SimulateInputEvent(instance,
                                         input_event_impl->pp_resource());
 }
 
 }  // namespace proxy
 }  // namespace ppapi