Add missing include guards in Cocoa code.

chrome/browser/ui/cocoa/bookmarks/bookmark_menu_cocoa_controller.h

 // Copyright (c) 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.
 
-// Controller (MVC) for the bookmark menu.
-// All bookmark menu item commands get directed here.
-// Unfortunately there is already a C++ class named BookmarkMenuController.
-
 #ifndef CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_MENU_COCOA_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_MENU_COCOA_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #import "base/mac/scoped_nsobject.h"
 #include "ui/base/window_open_disposition.h"
 
 class BookmarkMenuBridge;
 
 namespace bookmarks {
 class BookmarkNode;
 }
 
+// Controller (MVC) for the bookmark menu.
+// All bookmark menu item commands get directed here.
+// Unfortunately there is already a C++ class named BookmarkMenuController.
 @interface BookmarkMenuCocoaController : NSObject<NSMenuDelegate> {
  @private
   BookmarkMenuBridge* bridge_;  // weak; owns me
   base::scoped_nsobject<NSMenu> menu_;
 }
 
 // The Bookmarks menu
 @property(nonatomic, readonly) NSMenu* menu;
 
 // Return an autoreleased string to be used as a menu title for the
@@ skipping 17 matching lines @@
 
 
 @interface BookmarkMenuCocoaController (ExposedForUnitTests)
 - (const bookmarks::BookmarkNode*)nodeForIdentifier:(int)identifier;
 - (void)openURLForNode:(const bookmarks::BookmarkNode*)node;
 - (void)openAll:(NSInteger)tag
     withDisposition:(WindowOpenDisposition)disposition;
 @end  // BookmarkMenuCocoaController (ExposedForUnitTests)
 
 #endif  // CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_MENU_COCOA_CONTROLLER_H_