Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/ash/multi_user/user_switch_animator_chromeos.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_ASH_MULTI_USER_USER_SWITCH_ANIMATOR_CHROMEOS_H_
 #define CHROME_BROWSER_UI_ASH_MULTI_USER_USER_SWITCH_ANIMATOR_CHROMEOS_H_
 
 #include <map>
+#include <memory>
 #include <string>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/timer/timer.h"
 #include "components/signin/core/account_id/account_id.h"
 #include "ui/aura/window.h"
 
 namespace chrome {
 
 class MultiUserWindowManagerChromeOS;
 
 // A class which performs transitions animations between users. Upon creation,
 // the animation gets started and upon destruction the animation gets finished
@@ skipping 86 matching lines @@
 
   // The screen cover status before the animation has started.
   TransitioningScreenCover screen_cover_;
 
   // Mapping users IDs to the list of windows to show for these users.
   typedef std::map<AccountId, aura::Window::Windows> UserToWindowsMap;
   UserToWindowsMap windows_by_account_id_;
 
   // A timer which watches to executes the second part of a "user changed"
   // animation. Note that this timer exists only during such an animation.
-  scoped_ptr<base::Timer> user_changed_animation_timer_;
+  std::unique_ptr<base::Timer> user_changed_animation_timer_;
 
   // For unit tests: Check which wallpaper was set.
   std::string wallpaper_user_id_for_test_;
 
   DISALLOW_COPY_AND_ASSIGN(UserSwitchAnimatorChromeOS);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_ASH_MULTI_USER_USER_SWITCH_ANIMATOR_CHROMEOS_H_