Enable PDF accessibility when RenderFrame's accessibility mode changes.

content/renderer/pepper/fake_pepper_plugin_instance.cc

 // Copyright (c) 2013 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/fake_pepper_plugin_instance.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/shared_impl/ppapi_permissions.h"
 
 namespace content {
 
 FakePepperPluginInstance::~FakePepperPluginInstance() {}
 
-content::RenderView* FakePepperPluginInstance::GetRenderView() { return NULL; }
+content::RenderFrame* FakePepperPluginInstance::GetRenderFrame() {
+  return nullptr;
+}
+
+content::RenderView* FakePepperPluginInstance::GetRenderView() {
+  return nullptr;
+}
 
 blink::WebPluginContainer* FakePepperPluginInstance::GetContainer() {
-  return NULL;
+  return nullptr;
 }
 
-v8::Isolate* FakePepperPluginInstance::GetIsolate() const { return NULL; }
+v8::Isolate* FakePepperPluginInstance::GetIsolate() const { return nullptr; }
 
-ppapi::VarTracker* FakePepperPluginInstance::GetVarTracker() { return NULL; }
+ppapi::VarTracker* FakePepperPluginInstance::GetVarTracker() { return nullptr; }
 
 const GURL& FakePepperPluginInstance::GetPluginURL() { return gurl_; }
 
 base::FilePath FakePepperPluginInstance::GetModulePath() {
   return base::FilePath();
 }
 
 PP_Resource FakePepperPluginInstance::CreateImage(gfx::ImageSkia* source_image,
                                                   float scale) {
   return 0;
@@ skipping 37 matching lines @@
 
 void FakePepperPluginInstance::SetSelectedText(
     const base::string16& selected_text) {}
 
 void FakePepperPluginInstance::SetLinkUnderCursor(const std::string& url) {}
 void FakePepperPluginInstance::SetTextInputType(ui::TextInputType type) {}
 void FakePepperPluginInstance::PostMessageToJavaScript(PP_Var message) {}
 
 
 }  // namespace content