mac: Update clients of scoped_nsobject.h.

chrome/browser/ui/cocoa/tabs/tab_strip_drag_controller.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/tabs/tab_strip_drag_controller.h"
 
 #import "base/mac/mac_util.h"
 #include "base/mac/scoped_cftyperef.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_controller.h"
 #import "chrome/browser/ui/cocoa/tabs/tab_controller_target.h"
@@ skipping 90 matching lines @@
   // If we are dragging a tab, a window with a single tab should immediately
   // snap off and not drag within the tab strip.
   if (!moveWindowOnDrag_)
     draggingWithinTabStrip_ = [sourceController_ numberOfTabs] > 1;
 
   dragOrigin_ = [NSEvent mouseLocation];
 
   // When spinning the event loop, a tab can get detached, which could lead to
   // our own destruction. Keep ourselves around while spinning the loop as well
   // as the tab controller being dragged.
-  scoped_nsobject<TabStripDragController> keepAlive([self retain]);
-  scoped_nsobject<TabController> keepAliveTab([tab retain]);
+  base::scoped_nsobject<TabStripDragController> keepAlive([self retain]);
+  base::scoped_nsobject<TabController> keepAliveTab([tab retain]);
 
   // Because we move views between windows, we need to handle the event loop
   // ourselves. Ideally we should use the standard event loop.
   while (1) {
     const NSUInteger mask =
         NSLeftMouseUpMask | NSLeftMouseDraggedMask | NSKeyUpMask;
     theEvent =
         [NSApp nextEventMatchingMask:mask
                            untilDate:[NSDate distantFuture]
                               inMode:NSDefaultRunLoopMode
@@ skipping 365 matching lines @@
     [[targetController_ window] makeMainWindow];
   } else {
     [dragWindow_ setAlphaValue:0.5];
     [[draggedController_ overlayWindow] setHasShadow:NO];
     [[draggedController_ window] makeMainWindow];
   }
   chromeIsVisible_ = shouldBeVisible;
 }
 
 @end