Run clang-modernize -use-nullptr over src/extensions/.

extensions/browser/extension_function_dispatcher.cc

 // Copyright 2014 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 "extensions/browser/extension_function_dispatcher.h"
 
 #include "base/bind.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
@@ skipping 179 matching lines @@
 
   base::WeakPtr<ExtensionFunctionDispatcher> dispatcher_;
   content::RenderViewHost* render_view_host_;
   base::WeakPtrFactory<UIThreadResponseCallbackWrapper> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(UIThreadResponseCallbackWrapper);
 };
 
 WindowController*
 ExtensionFunctionDispatcher::Delegate::GetExtensionWindowController() const {
-  return NULL;
+  return nullptr;
 }
 
 content::WebContents*
 ExtensionFunctionDispatcher::Delegate::GetAssociatedWebContents() const {
-  return NULL;
+  return nullptr;
 }
 
 content::WebContents*
 ExtensionFunctionDispatcher::Delegate::GetVisibleWebContents() const {
   return GetAssociatedWebContents();
 }
 
 void ExtensionFunctionDispatcher::GetAllFunctionNames(
     std::vector<std::string>* names) {
   ExtensionFunctionRegistry::GetInstance()->GetAllNames(names);
@@ skipping 74 matching lines @@
 }
 
 ExtensionFunctionDispatcher::~ExtensionFunctionDispatcher() {
 }
 
 void ExtensionFunctionDispatcher::Dispatch(
     const ExtensionHostMsg_Request_Params& params,
     RenderViewHost* render_view_host) {
   UIThreadResponseCallbackWrapperMap::const_iterator
       iter = ui_thread_response_callback_wrappers_.find(render_view_host);
-  UIThreadResponseCallbackWrapper* callback_wrapper = NULL;
+  UIThreadResponseCallbackWrapper* callback_wrapper = nullptr;
   if (iter == ui_thread_response_callback_wrappers_.end()) {
     callback_wrapper = new UIThreadResponseCallbackWrapper(AsWeakPtr(),
                                                            render_view_host);
     ui_thread_response_callback_wrappers_[render_view_host] = callback_wrapper;
   } else {
     callback_wrapper = iter->second;
   }
 
   DispatchWithCallbackInternal(
-      params, render_view_host, NULL,
+      params,
+      render_view_host,
+      nullptr,
       callback_wrapper->CreateCallback(params.request_id));
 }
 
 void ExtensionFunctionDispatcher::DispatchWithCallbackInternal(
     const ExtensionHostMsg_Request_Params& params,
     RenderViewHost* render_view_host,
     content::RenderFrameHost* render_frame_host,
     const ExtensionFunction::ResponseCallback& callback) {
   DCHECK(render_view_host || render_frame_host);
   // TODO(yzshen): There is some shared logic between this method and
@@ skipping 116 matching lines @@
     int requesting_process_id,
     const ProcessMap& process_map,
     ExtensionAPI* api,
     void* profile_id,
     const ExtensionFunction::ResponseCallback& callback) {
   ExtensionFunction* function =
       ExtensionFunctionRegistry::GetInstance()->NewFunction(params.name);
   if (!function) {
     LOG(ERROR) << "Unknown Extension API - " << params.name;
     SendAccessDenied(callback);
-    return NULL;
+    return nullptr;
   }
 
   function->SetArgs(&params.arguments);
   function->set_source_url(params.source_url);
   function->set_request_id(params.request_id);
   function->set_has_callback(params.has_callback);
   function->set_user_gesture(params.user_gesture);
   function->set_extension(extension);
   function->set_profile_id(profile_id);
   function->set_response_callback(callback);
   function->set_source_tab_id(params.source_tab_id);
   function->set_source_context_type(
       process_map.GetMostLikelyContextType(extension, requesting_process_id));
 
   return function;
 }
 
 // static
 void ExtensionFunctionDispatcher::SendAccessDenied(
     const ExtensionFunction::ResponseCallback& callback) {
   base::ListValue empty_list;
   callback.Run(ExtensionFunction::FAILED, empty_list,
                "Access to extension API denied.");
 }
 
 }  // namespace extensions