FocusManagerFactory::Create() should return a unique_ptr.

ash/accelerators/ash_focus_manager_factory.cc

 // Copyright (c) 2012 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 "ash/accelerators/ash_focus_manager_factory.h"
 
 #include "ash/accelerators/accelerator_controller.h"
 #include "ash/shell.h"
 #include "base/memory/ptr_util.h"
 #include "ui/views/focus/focus_manager.h"
 
 namespace ash {
 
 AshFocusManagerFactory::AshFocusManagerFactory() {}
 AshFocusManagerFactory::~AshFocusManagerFactory() {}
 
-views::FocusManager* AshFocusManagerFactory::CreateFocusManager(
+std::unique_ptr<views::FocusManager> AshFocusManagerFactory::CreateFocusManager(
     views::Widget* widget,
     bool desktop_widget) {
-  return new views::FocusManager(
-      widget,
-      desktop_widget ? nullptr : base::WrapUnique<Delegate>(new Delegate));
+  return base::MakeUnique<views::FocusManager>(
+      widget, desktop_widget ? nullptr : base::MakeUnique<Delegate>());
 }
 
+AshFocusManagerFactory::Delegate::Delegate() {}
+AshFocusManagerFactory::Delegate::~Delegate() {}
+
 bool AshFocusManagerFactory::Delegate::ProcessAccelerator(
     const ui::Accelerator& accelerator) {
   AcceleratorController* controller = Shell::Get()->accelerator_controller();
-  if (controller)
-    return controller->Process(accelerator);
-  return false;
+  return controller && controller->Process(accelerator);
 }
 
 }  // namespace ash