NULL -> nullptr under athena/

athena/input/input_manager_impl.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 "athena/input/input_manager_impl.h"
 
 #include "athena/input/power_button_controller.h"
 #include "base/logging.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window.h"
 
 namespace athena {
 namespace {
 
-InputManager* instance = NULL;
+InputManager* instance = nullptr;
 
 }  // namespace
 
 InputManagerImpl::InputManagerImpl()
     : accelerator_manager_(
           AcceleratorManagerImpl::CreateGlobalAcceleratorManager()),
       power_button_controller_(new PowerButtonController) {
   DCHECK(!instance);
   instance = this;
 }
 
 InputManagerImpl::~InputManagerImpl() {
   DCHECK_EQ(instance, this);
   Shutdown();
-  instance = NULL;
+  instance = nullptr;
 }
 
 void InputManagerImpl::Init() {
   accelerator_manager_->Init();
   power_button_controller_->InstallAccelerators();
 }
 
 void InputManagerImpl::Shutdown() {
   accelerator_manager_.reset();
 }
@@ skipping 35 matching lines @@
 ui::EventTarget* InputManagerImpl::GetParentTarget() {
   return aura::Env::GetInstance();
 }
 
 scoped_ptr<ui::EventTargetIterator> InputManagerImpl::GetChildIterator() const {
   return scoped_ptr<ui::EventTargetIterator>();
 }
 
 ui::EventTargeter* InputManagerImpl::GetEventTargeter() {
   NOTREACHED();
-  return NULL;
+  return nullptr;
 }
 
 void InputManagerImpl::OnEvent(ui::Event* event) {
 }
 
 int InputManagerImpl::SetPowerButtonTimeoutMsForTest(int timeout) {
   return power_button_controller_->SetPowerButtonTimeoutMsForTest(timeout);
 }
 
 // static
@@ skipping 10 matching lines @@
 }
 
 // static
 void InputManager::Shutdown() {
   DCHECK(instance);
   delete instance;
   DCHECK(!instance);
 }
 
 }  // namespace athena