mac: Update clients of scoped_nsobject.h.

chrome/browser/ui/cocoa/location_bar/autocomplete_text_field_cell.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/location_bar/autocomplete_text_field_cell.h"
 
 #include "base/logging.h"
 #include "base/mac/foundation_util.h"
 #include "base/mac/mac_logging.h"
 #include "chrome/browser/search/search.h"
@@ skipping 529 matching lines @@
             [view convertPoint:mouseLocationWindow fromView:nil];
         const BOOL mouseInRect = NSMouseInRect(
             mouseLocation, decorationFrames[i], [view isFlipped]);
         button->SetButtonState(mouseInRect ?
                                    ButtonDecoration::kButtonStateHover :
                                    ButtonDecoration::kButtonStateNormal);
         [view setNeedsDisplay:YES];
       }
 
       NSDictionary* info = [self getDictionaryForButtonDecoration:button];
-      scoped_nsobject<CrTrackingArea> area(
+      base::scoped_nsobject<CrTrackingArea> area(
           [[CrTrackingArea alloc] initWithRect:decorationFrames[i]
                                        options:NSTrackingMouseEnteredAndExited |
                                                NSTrackingActiveAlways
                                          owner:view
                                       userInfo:info]);
       [view addTrackingArea:area];
     }
   }
 }
 
@@ skipping 195 matching lines @@
   NSTextView* fieldEditor =
       base::mac::ObjCCastStrict<NSTextView>([controlView currentEditor]);
   [fieldEditor updateInsertionPointStateAndRestartTimer:YES];
 }
 
 - (BOOL)showsFirstResponder {
   return [super showsFirstResponder] && !hideFocusState_;
 }
 
 @end