convert //mash to std::unique_ptr

mash/example/common/mus_views_init.h

 // Copyright 2015 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 MASH_EXAMPLE_COMMON_MUS_VIEWS_INIT_H_
 #define MASH_EXAMPLE_COMMON_MUS_VIEWS_INIT_H_
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "components/mus/public/cpp/window_tree_delegate.h"
 #include "components/mus/public/interfaces/window_manager.mojom.h"
 #include "ui/views/mus/aura_init.h"
 #include "ui/views/views_delegate.h"
 
 namespace mojo {
 class ShellConnection;
 }
 
 namespace views {
@@ skipping 18 matching lines @@
       views::internal::NativeWidgetDelegate* delegate) override;
 
   // mus::WindowTreeDelegate:
   void OnEmbed(mus::Window* root) override;
   void OnConnectionLost(mus::WindowTreeConnection* connection) override;
 #if defined(OS_WIN)
   HICON GetSmallWindowIcon() const override;
 #endif
 
   mojo::ShellConnection* app_;
-  scoped_ptr<views::AuraInit> aura_init_;
+  std::unique_ptr<views::AuraInit> aura_init_;
   mus::mojom::WindowManagerPtr window_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(MUSViewsInit);
 };
 
 #endif  // MASH_EXAMPLE_COMMON_MUS_VIEWS_INIT_H_