mac: Update clients of scoped_nsobject.h.

ui/base/cocoa/hover_image_button.h

 // Copyright (c) 2011 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_BASE_COCOA_HOVER_IMAGE_BUTTON_H_
 #define UI_BASE_COCOA_HOVER_IMAGE_BUTTON_H_
 
 #import <Cocoa/Cocoa.h>
 
-#import "base/memory/scoped_nsobject.h"
+#import "base/mac/scoped_nsobject.h"
 #import "ui/base/cocoa/hover_button.h"
 #include "ui/base/ui_export.h"
 
 // A button that changes images when you hover over it and click it.
 UI_EXPORT
 @interface HoverImageButton : HoverButton {
  @private
-  scoped_nsobject<NSImage> defaultImage_;
-  scoped_nsobject<NSImage> hoverImage_;
-  scoped_nsobject<NSImage> pressedImage_;
+  base::scoped_nsobject<NSImage> defaultImage_;
+  base::scoped_nsobject<NSImage> hoverImage_;
+  base::scoped_nsobject<NSImage> pressedImage_;
 }
 
 // Sets the default image.
 - (void)setDefaultImage:(NSImage*)image;
 
 // Sets the hover image.
 - (void)setHoverImage:(NSImage*)image;
 
 // Sets the pressed image.
 - (void)setPressedImage:(NSImage*)image;
 
 @end
 
 #endif  // UI_BASE_COCOA_HOVER_IMAGE_BUTTON_H_