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

extensions/shell/browser/shell_native_app_window.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_native_app_window.h"
 
 #include "content/public/browser/web_contents.h"
 #include "extensions/shell/browser/desktop_controller.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_tree_host.h"
@@ skipping 119 matching lines @@
 bool ShellNativeAppWindow::IsAlwaysOnTop() const {
   return false;
 }
 
 void ShellNativeAppWindow::SetAlwaysOnTop(bool always_on_top) {
   NOTIMPLEMENTED();
 }
 
 gfx::NativeView ShellNativeAppWindow::GetHostView() const {
   NOTIMPLEMENTED();
-  return NULL;
+  return nullptr;
 }
 
 gfx::Point ShellNativeAppWindow::GetDialogPosition(const gfx::Size& size) {
   NOTIMPLEMENTED();
   return gfx::Point();
 }
 
 void ShellNativeAppWindow::AddObserver(
       web_modal::ModalDialogHostObserver* observer) {
   NOTIMPLEMENTED();
@@ skipping 30 matching lines @@
   // No badge to update.
 }
 
 void ShellNativeAppWindow::UpdateDraggableRegions(
     const std::vector<DraggableRegion>& regions) {
   NOTIMPLEMENTED();
 }
 
 SkRegion* ShellNativeAppWindow::GetDraggableRegion() {
   NOTIMPLEMENTED();
-  return NULL;
+  return nullptr;
 }
 
 void ShellNativeAppWindow::UpdateShape(scoped_ptr<SkRegion> region) {
   NOTIMPLEMENTED();
 }
 
 void ShellNativeAppWindow::HandleKeyboardEvent(
       const content::NativeWebKeyboardEvent& event) {
   // No special handling. The WebContents will handle it.
 }
@@ skipping 54 matching lines @@
 bool ShellNativeAppWindow::CanHaveAlphaEnabled() const {
   // No background to display if the window was transparent.
   return false;
 }
 
 aura::Window* ShellNativeAppWindow::GetWindow() const {
   return app_window_->web_contents()->GetNativeView();
 }
 
 }  // namespace extensions