Switch users of foundation_util.h to include it directly and clean up uses of mac_util.h.

chrome/browser/ui/cocoa/wrench_menu/menu_tracked_button.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.
 
 #import "chrome/browser/ui/cocoa/wrench_menu/menu_tracked_button.h"
 
-#include "base/mac/mac_util.h"
-
 @interface MenuTrackedButton (Private)
 - (void)doHighlight:(BOOL)highlight;
 - (void)checkMouseInRect;
 - (NSRect)insetBounds;
 @end
 
 @implementation MenuTrackedButton
 
 @synthesize tracking = tracking_;
 
@@ skipping 74 matching lines @@
   }
 }
 
 // Returns the bounds of the receiver slightly inset to avoid highlighting both
 // buttons in a pair that overlap.
 - (NSRect)insetBounds {
   return NSInsetRect([self bounds], 2, 1);
 }
 
 @end