mac: Update clients of scoped_nsobject.h.

ui/base/cocoa/tracking_area_unittest.mm

 // Copyright (c) 2011 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.
 
-#include "base/memory/scoped_nsobject.h"
+#include "base/mac/scoped_nsobject.h"
 #import "ui/base/cocoa/tracking_area.h"
 #import "ui/base/test/ui_cocoa_test_helper.h"
 
 // A test object that counts the number of times a message is sent to it.
 @interface TestTrackingAreaOwner : NSObject {
  @private
   NSUInteger messageCount_;
 }
 @property(nonatomic, assign) NSUInteger messageCount;
 - (void)performMessage;
@@ skipping 12 matching lines @@
  public:
   CrTrackingAreaTest()
       : owner_([[TestTrackingAreaOwner alloc] init]),
         trackingArea_([[CrTrackingArea alloc]
             initWithRect:NSMakeRect(0, 0, 100, 100)
                  options:NSTrackingMouseMoved | NSTrackingActiveInKeyWindow
                    owner:owner_.get()
                 userInfo:nil]) {
   }
 
-  scoped_nsobject<TestTrackingAreaOwner> owner_;
-  scoped_nsobject<CrTrackingArea> trackingArea_;
+  base::scoped_nsobject<TestTrackingAreaOwner> owner_;
+  base::scoped_nsobject<CrTrackingArea> trackingArea_;
 };
 
 TEST_F(CrTrackingAreaTest, OwnerForwards) {
   [[trackingArea_ owner] performMessage];
   EXPECT_EQ(1U, [owner_ messageCount]);
 
   [[trackingArea_ owner] performMessage];
   EXPECT_EQ(2U, [owner_ messageCount]);
 }
 
@@ skipping 42 matching lines @@
 
     [[scoper.get() owner] performMessage];
     EXPECT_EQ(2U, [owner_ messageCount]);
   }
 
   [[trackingArea_ owner] performMessage];
   EXPECT_EQ(2U, [owner_ messageCount]);
 }
 
 }  // namespace ui