mac: Update clients of scoped_nsobject.h.

chrome/browser/ui/cocoa/constrained_window/constrained_window_alert.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.
 
 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_alert.h"
 
 #import "base/logging.h"
 #import "chrome/browser/ui/chrome_style.h"
 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_button.h"
 #import "chrome/browser/ui/cocoa/constrained_window/constrained_window_control_utils.h"
@@ skipping 92 matching lines @@
 - (NSWindow*)window {
   return window_;
 }
 
 - (void)addButtonWithTitle:(NSString*)title
              keyEquivalent:(NSString*)keyEquivalent
                     target:(id)target
                     action:(SEL)action {
   if (!buttons_.get())
     buttons_.reset([[NSMutableArray alloc] init]);
-  scoped_nsobject<NSButton> button(
+  base::scoped_nsobject<NSButton> button(
       [[ConstrainedWindowButton alloc] initWithFrame:NSZeroRect]);
   [button setTitle:title];
   [button setKeyEquivalent:keyEquivalent];
   [button setTarget:target];
   [button setAction:action];
   [buttons_ addObject:button];
   [[window_ contentView] addSubview:button];
 }
 
 - (void)layout {
@@ skipping 97 matching lines @@
   frame.size.width = chrome_style::GetCloseButtonSize();
   frame.size.height = chrome_style::GetCloseButtonSize();
   frame.origin.x = windowWidth -
       chrome_style::kCloseButtonPadding - NSWidth(frame);
   frame.origin.y = windowHeight -
       chrome_style::kCloseButtonPadding - NSHeight(frame);
   [closeButton_ setFrame:frame];
 }
 
 @end