mac: Update clients of scoped_nsobject.h.

ash/shell/shell_main_parts_mac.mm

 // Copyright (c) 2012 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 "ash/shell/shell_main_parts.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/i18n/icu_util.h"
 #include "base/mac/bundle_locations.h"
-#include "base/memory/scoped_nsobject.h"
+#include "base/mac/scoped_nsobject.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_paths.h"
 
 namespace ash {
 namespace shell {
 
 void PreMainMessageLoopStart() {
   ui::RegisterPathProvider();
   icu_util::Initialize();
   ResourceBundle::InitSharedInstanceWithLocale("en-US", NULL);
 
-  scoped_nsobject<NSNib>
-      nib([[NSNib alloc] initWithNibNamed:@"MainMenu"
-                                   bundle:base::mac::FrameworkBundle()]);
+  base::scoped_nsobject<NSNib> nib(
+      [[NSNib alloc] initWithNibNamed:@"MainMenu"
+                               bundle:base::mac::FrameworkBundle()]);
   [nib instantiateNibWithOwner:NSApp topLevelObjects:nil];
 }
 
 }  // namespace shell
 }  // namespace ash