[Mac] Move all the related files for the Wrench menu into a subdir of c/b/u/c...

chrome/browser/ui/cocoa/wrench_menu_button_cell.h

Index: chrome/browser/ui/cocoa/wrench_menu_button_cell.h
===================================================================
--- chrome/browser/ui/cocoa/wrench_menu_button_cell.h	(revision 71447)
+++ chrome/browser/ui/cocoa/wrench_menu_button_cell.h	(working copy)
@@ -1,19 +0,0 @@
-// Copyright (c) 2010 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.
-
-#ifndef CHROME_BROWSER_UI_COCOA_WRENCH_MENU_BUTTON_CELL_H_
-#define CHROME_BROWSER_UI_COCOA_WRENCH_MENU_BUTTON_CELL_H_
-
-#import <Cocoa/Cocoa.h>
-
-// The WrenchMenuButtonCell overrides drawing the background gradient to use
-// the same colors as NSSmallSquareBezelStyle but as a smooth gradient, rather
-// than two blocks of colors.  This also uses the blue menu highlight color for
-// the pressed state.
-@interface WrenchMenuButtonCell : NSButtonCell {
-}
-
-@end
-
-#endif  // CHROME_BROWSER_UI_COCOA_WRENCH_MENU_BUTTON_CELL_H_