Mac: correct favicons in bookmarks bar (for pages w/o one and for subfolders).

chrome/browser/cocoa/bookmark_bar_controller.h

 // Copyright (c) 2009 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_COCOA_BOOKMARK_BAR_CONTROLLER_H_
 #define CHROME_BROWSER_COCOA_BOOKMARK_BAR_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 #include <map>
 
@@ skipping 55 matching lines @@
   // node from the item.  When adding items in, we start with seedId_.
   int32 seedId_;
   std::map<int32,int64> menuTagMap_;
 
   // Our bookmark buttons, ordered from L-->R.
   scoped_nsobject<NSMutableArray> buttons_;
 
   // The folder image so we can use one copy for all buttons
   scoped_nsobject<NSImage> folderImage_;
 
+  // The default image, so we can use one copy for all buttons.
+  scoped_nsobject<NSImage> defaultImage_;
+
   // If the bar is disabled, we hide it and ignore show/hide commands.
   // Set when using fullscreen mode.
   BOOL barIsEnabled_;
 
   // Bridge from Chrome-style C++ notifications (e.g. derived from
   // BookmarkModelObserver)
   scoped_ptr<BookmarkBarBridge> bridge_;
 
   // Delegate that is alerted about whether it should be compressed because
   // it's right next to us.
@@ skipping 112 matching lines @@
 - (NSMenu *)menuForFolderNode:(const BookmarkNode*)node;
 - (int64)nodeIdFromMenuTag:(int32)tag;
 - (int32)menuTagFromNodeId:(int64)menuid;
 - (void)buildOffTheSideMenu;
 - (NSMenu*)offTheSideMenu;
 - (NSButton*)offTheSideButton;
 - (NSButton*)otherBookmarksButton;
 @end
 
 #endif  // CHROME_BROWSER_COCOA_BOOKMARK_BAR_CONTROLLER_H_