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

extensions/shell/browser/shell_desktop_controller.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/shell/browser/shell_desktop_controller.h"
 
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 142 matching lines @@
     return true;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AppsFocusRules);
 };
 
 }  // namespace
 
 ShellDesktopController::ShellDesktopController()
-    : app_window_client_(new ShellAppWindowClient), app_window_(NULL) {
+    : app_window_client_(new ShellAppWindowClient), app_window_(nullptr) {
   extensions::AppWindowClient::Set(app_window_client_.get());
 
 #if defined(OS_CHROMEOS)
   chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->
       AddObserver(this);
   display_configurator_.reset(new ui::DisplayConfigurator);
   display_configurator_->Init(false);
   display_configurator_->ForceInitialConfigure(0);
   display_configurator_->AddObserver(this);
 #endif
   CreateRootWindow();
 }
 
 ShellDesktopController::~ShellDesktopController() {
   CloseAppWindows();
   DestroyRootWindow();
 #if defined(OS_CHROMEOS)
   chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->
       RemoveObserver(this);
 #endif
-  extensions::AppWindowClient::Set(NULL);
+  extensions::AppWindowClient::Set(nullptr);
 }
 
 aura::WindowTreeHost* ShellDesktopController::GetHost() {
   return host_.get();
 }
 
 AppWindow* ShellDesktopController::CreateAppWindow(
     content::BrowserContext* context,
     const Extension* extension) {
   app_window_ = new AppWindow(context, new ShellAppDelegate, extension);
   return app_window_;
 }
 
 void ShellDesktopController::AddAppWindow(aura::Window* window) {
   aura::Window* root_window = GetHost()->window();
   root_window->AddChild(window);
 }
 
 void ShellDesktopController::CloseAppWindows() {
   if (app_window_) {
     app_window_->GetBaseWindow()->Close();  // Close() deletes |app_window_|.
-    app_window_ = NULL;
+    app_window_ = nullptr;
   }
 }
 
 aura::Window* ShellDesktopController::GetDefaultParent(
     aura::Window* context,
     aura::Window* window,
     const gfx::Rect& bounds) {
   return host_->window();
 }
 
@@ skipping 98 matching lines @@
   if (input_method_filter_)
     root_window_event_filter_->RemoveHandler(input_method_filter_.get());
   if (user_activity_detector_) {
     host_->event_processor()->GetRootTarget()->RemovePreTargetHandler(
         user_activity_detector_.get());
   }
   wm::FocusController* focus_controller =
       static_cast<wm::FocusController*>(focus_client_.get());
   if (focus_controller) {
     host_->window()->RemovePreTargetHandler(focus_controller);
-    aura::client::SetActivationClient(host_->window(), NULL);
+    aura::client::SetActivationClient(host_->window(), nullptr);
   }
   root_window_event_filter_.reset();
   capture_client_.reset();
   input_method_filter_.reset();
   focus_client_.reset();
   cursor_manager_.reset();
 #if defined(OS_CHROMEOS)
   user_activity_notifier_.reset();
 #endif
   user_activity_detector_.reset();
   host_.reset();
 }
 
 gfx::Size ShellDesktopController::GetPrimaryDisplaySize() {
 #if defined(OS_CHROMEOS)
   const std::vector<ui::DisplayConfigurator::DisplayState>& displays =
       display_configurator_->cached_displays();
   if (displays.empty())
     return gfx::Size();
   const ui::DisplayMode* mode = displays[0].display->current_mode();
   return mode ? mode->size() : gfx::Size();
 #else
   return gfx::Size();
 #endif
 }
 
 }  // namespace extensions