Rename PepperPluginDelegateImpl to PepperHelperImpl after getting rid of the PluginDelegate interfa…

content/renderer/pepper/resource_helper.cc

 // Copyright (c) 2010 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 "content/renderer/pepper/resource_helper.h"
 
 #include "base/logging.h"
 #include "content/renderer/pepper/host_globals.h"
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "content/renderer/pepper/plugin_module.h"
@@ skipping 11 matching lines @@
     PP_Instance instance) {
   return HostGlobals::Get()->GetInstance(instance);
 }
 
 PluginModule* ResourceHelper::GetPluginModule(
     const ::ppapi::Resource* resource) {
   PepperPluginInstanceImpl* instance = GetPluginInstance(resource);
   return instance ? instance->module() : NULL;
 }
 
-PepperPluginDelegateImpl* ResourceHelper::GetPluginDelegate(
-    const ::ppapi::Resource* resource) {
+PepperHelperImpl* ResourceHelper::GetHelper(const ::ppapi::Resource* resource) {
   PepperPluginInstanceImpl* instance = GetPluginInstance(resource);
-  return instance ? instance->delegate() : NULL;
+  return instance ? instance->helper() : NULL;
 }
 
 }  // namespace content