Replace scoped_ptr with std::unique_ptr in //ui

ui/ozone/public/ozone_platform.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 "base/command_line.h"
 #include "base/logging.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/events/devices/device_data_manager.h"
 #include "ui/ozone/platform_object.h"
 #include "ui/ozone/platform_selection.h"
@@ skipping 48 matching lines @@
   return instance_;
 }
 
 // static
 void OzonePlatform::CreateInstance() {
   if (!instance_) {
     TRACE_EVENT1("ozone",
                  "OzonePlatform::Initialize",
                  "platform",
                  GetOzonePlatformName());
-    scoped_ptr<OzonePlatform> platform =
+    std::unique_ptr<OzonePlatform> platform =
         PlatformObject<OzonePlatform>::Create();
 
     // TODO(spang): Currently need to leak this object.
     OzonePlatform* pl = platform.release();
     DCHECK_EQ(instance_, pl);
   }
 }
 
 // static
 OzonePlatform* OzonePlatform::instance_;
 
 }  // namespace ui