mac: Update clients of scoped_nsobject.h.

chrome/browser/ui/cocoa/tabs/tab_audio_indicator_view_mac_unittest.mm

 // Copyright (c) 2013 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_audio_indicator_view_mac.h"
 
 #include "base/message_loop.h"
 #import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
 
 class TabAudioIndicatorViewMacTest : public CocoaTest {
  protected:
   TabAudioIndicatorViewMacTest() {
-    scoped_nsobject<TabAudioIndicatorViewMac> view(
+    base::scoped_nsobject<TabAudioIndicatorViewMac> view(
         [[TabAudioIndicatorViewMac alloc]
             initWithFrame:NSMakeRect(0, 0, 16, 16)]);
     view_ = view.get();
     [[test_window() contentView] addSubview:view_];
 
-    scoped_nsobject<NSImage> image(
+    base::scoped_nsobject<NSImage> image(
         [[NSImage alloc] initWithSize:NSMakeSize(16, 16)]);
     [image lockFocus];
     NSRectFill(NSMakeRect(0, 0, 16, 16));
     [image unlockFocus];
 
     [view_ setBackgroundImage:image];
     [view_ setIsPlayingAudio:YES];
   }
 
   TabAudioIndicatorViewMac* view_;
   base::MessageLoopForUI message_loop_;  // Needed for ui::LinearAnimation.
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TabAudioIndicatorViewMacTest);
 };
 
 TEST_VIEW(TabAudioIndicatorViewMacTest, view_)