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

chrome/browser/ui/ash/system_tray_delegate_common.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_SYSTEM_TRAY_DELEGATE_COMMON_H_
 #define CHROME_BROWSER_UI_ASH_SYSTEM_TRAY_DELEGATE_COMMON_H_
 
+#include <memory>
 #include <string>
 
 #include "ash/system/tray/system_tray_delegate.h"
 #include "base/compiler_specific.h"
 #include "base/i18n/time_formatting.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 // Common base class for platform-specific implementations.
 class SystemTrayDelegateCommon : public ash::SystemTrayDelegate,
                                  public content::NotificationObserver {
  public:
   SystemTrayDelegateCommon();
 
   ~SystemTrayDelegateCommon() override;
@@ skipping 13 matching lines @@
   int GetSystemTrayMenuWidth() override;
 
  private:
   void UpdateClockType();
 
   // content::NotificationObserver implementation.
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
-  scoped_ptr<content::NotificationRegistrar> registrar_;
+  std::unique_ptr<content::NotificationRegistrar> registrar_;
   base::HourClockType clock_type_;
 
   DISALLOW_COPY_AND_ASSIGN(SystemTrayDelegateCommon);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_SYSTEM_TRAY_DELEGATE_COMMON_H_