Convert //content/browser from scoped_ptr to std::unique_ptr

content/browser/time_zone_monitor_mac.mm

 // 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.
 
 #import <Foundation/Foundation.h>
 
 #include "base/macros.h"
 #include "content/browser/time_zone_monitor.h"
 
 namespace content {
@@ skipping 16 matching lines @@
     [nc removeObserver:notification_observer_];
   }
 
  private:
   id notification_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(TimeZoneMonitorMac);
 };
 
 // static
-scoped_ptr<TimeZoneMonitor> TimeZoneMonitor::Create() {
-  return scoped_ptr<TimeZoneMonitor>(new TimeZoneMonitorMac());
+std::unique_ptr<TimeZoneMonitor> TimeZoneMonitor::Create() {
+  return std::unique_ptr<TimeZoneMonitor>(new TimeZoneMonitorMac());
 }
 
 }  // namespace content