Replace scoped_ptr with std::unique_ptr in //ui

ui/views/widget/native_widget_mac.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 UI_VIEWS_WIDGET_NATIVE_WIDGET_MAC_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_MAC_H_
 
 #include "base/macros.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/views/widget/native_widget_private.h"
@@ skipping 128 matching lines @@
   virtual NativeWidgetMacNSWindow* CreateNSWindow(
       const Widget::InitParams& params);
 
   internal::NativeWidgetDelegate* delegate() { return delegate_; }
 
  private:
   friend class test::MockNativeWidgetMac;
   friend class test::HitTestNativeWidgetMac;
 
   internal::NativeWidgetDelegate* delegate_;
-  scoped_ptr<BridgedNativeWidget> bridge_;
+  std::unique_ptr<BridgedNativeWidget> bridge_;
 
   Widget::InitParams::Ownership ownership_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetMac);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_MAC_H_