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

extensions/browser/mock_extension_system.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/mock_extension_system.h"
 
 #include "extensions/common/extension_set.h"
 
 namespace extensions {
 
 //
 // MockExtensionSystem
 //
 
 MockExtensionSystem::MockExtensionSystem(content::BrowserContext* context)
     : browser_context_(context) {
 }
 
 MockExtensionSystem::~MockExtensionSystem() {
 }
 
 void MockExtensionSystem::InitForRegularProfile(bool extensions_enabled) {
 }
 
 ExtensionService* MockExtensionSystem::extension_service() {
-  return NULL;
+  return nullptr;
 }
 
 RuntimeData* MockExtensionSystem::runtime_data() {
-  return NULL;
+  return nullptr;
 }
 
 ManagementPolicy* MockExtensionSystem::management_policy() {
-  return NULL;
+  return nullptr;
 }
 
 SharedUserScriptMaster* MockExtensionSystem::shared_user_script_master() {
-  return NULL;
+  return nullptr;
 }
 
 ProcessManager* MockExtensionSystem::process_manager() {
-  return NULL;
+  return nullptr;
 }
 
 StateStore* MockExtensionSystem::state_store() {
-  return NULL;
+  return nullptr;
 }
 
 StateStore* MockExtensionSystem::rules_store() {
-  return NULL;
+  return nullptr;
 }
 
 InfoMap* MockExtensionSystem::info_map() {
-  return NULL;
+  return nullptr;
 }
 
 LazyBackgroundTaskQueue* MockExtensionSystem::lazy_background_task_queue() {
-  return NULL;
+  return nullptr;
 }
 
 EventRouter* MockExtensionSystem::event_router() {
-  return NULL;
+  return nullptr;
 }
 
 WarningService* MockExtensionSystem::warning_service() {
-  return NULL;
+  return nullptr;
 }
 
 Blacklist* MockExtensionSystem::blacklist() {
-  return NULL;
+  return nullptr;
 }
 
 ErrorConsole* MockExtensionSystem::error_console() {
-  return NULL;
+  return nullptr;
 }
 
 InstallVerifier* MockExtensionSystem::install_verifier() {
-  return NULL;
+  return nullptr;
 }
 
 QuotaService* MockExtensionSystem::quota_service() {
-  return NULL;
+  return nullptr;
 }
 
 const OneShotEvent& MockExtensionSystem::ready() const {
   return ready_;
 }
 
 ContentVerifier* MockExtensionSystem::content_verifier() {
-  return NULL;
+  return nullptr;
 }
 
 DeclarativeUserScriptMaster*
       MockExtensionSystem::GetDeclarativeUserScriptMasterByExtension(
           const ExtensionId& extension_id) {
-  return NULL;
+  return nullptr;
 }
 
 scoped_ptr<ExtensionSet> MockExtensionSystem::GetDependentExtensions(
     const Extension* extension) {
   return scoped_ptr<ExtensionSet>();
 }
 
 }  // namespace extensions