mac: Update clients of scoped_nsobject.h.

chrome/browser/ui/cocoa/tab_contents/overlayable_contents_controller_browsertest.mm

 // Copyright 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/tab_contents/overlayable_contents_controller.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/cocoa/browser_window_controller.h"
@@ skipping 60 matching lines @@
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE {
     if (type == content::NOTIFICATION_WEB_CONTENTS_VISIBILITY_CHANGED)
       ++visibility_changed_count_;
   }
 
  protected:
   InstantOverlayModel instant_overlay_model_;
   scoped_ptr<content::WebContents> web_contents_;
-  scoped_nsobject<OverlayableContentsController> controller_;
+  base::scoped_nsobject<OverlayableContentsController> controller_;
   content::NotificationRegistrar registrar_;
   int visibility_changed_count_;
 };
 
 // Verify that the view is correctly laid out when size is specified in percent.
 IN_PROC_BROWSER_TEST_F(OverlayableContentsControllerTest, SizePerecent) {
   SearchMode mode;
   mode.mode = SearchMode::MODE_NTP;
   CGFloat expected_height = 30;
   InstantSizeUnits units = INSTANT_SIZE_PERCENT;
@@ skipping 93 matching lines @@
   EXPECT_EQ(separator_height,
             NSMaxY([[overlay_view superview] frame]) -
             NSMaxY([overlay_view frame]));
 
   CGFloat offset = 30;
   [controller_ setOverlayContentsOffset:offset];
   EXPECT_EQ(separator_height + offset,
             NSMaxY([[overlay_view superview] frame]) -
             NSMaxY([overlay_view frame]));
 }