[Mac] Refactor bookmark bar controller

chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_BUTTON_CELL_H_
 #define CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_BUTTON_CELL_H_
 
 #import "chrome/browser/ui/cocoa/gradient_button_cell.h"
 
 @class BookmarkContextMenuCocoaController;
@@ skipping 26 matching lines @@
 
   // Text color for title.
   base::scoped_nsobject<NSColor> textColor_;
 }
 
 @property(nonatomic, readwrite, assign)
     const bookmarks::BookmarkNode* bookmarkNode;
 @property(nonatomic, readwrite, assign) int startingChildIndex;
 @property(nonatomic, readwrite, assign) BOOL drawFolderArrow;
 
+// Returns the width of a cell for the given node and image for
+// display on the bookmark bar (meaning no arrow for folder
+// nodes). Used for laying out bookmark bar without creating
+// live cells.
++ (CGFloat)cellWidthForNode:(const bookmarks::BookmarkNode*)node
+                      image:(NSImage*)image;
+
 // Create a button cell which draws with a theme.
 + (id)buttonCellForNode:(const bookmarks::BookmarkNode*)node
                    text:(NSString*)text
                   image:(NSImage*)image
          menuController:(BookmarkContextMenuCocoaController*)menuController;
 
 // Create a button cell not attached to any node which draws with a theme.
 + (id)buttonCellWithText:(NSString*)text
                    image:(NSImage*)image
           menuController:(BookmarkContextMenuCocoaController*)menuController;
@@ skipping 23 matching lines @@
 // a BookmarkButtonCell, and align the image to the left (NSImageLeft)
 // if there is text in the title, and centered (NSImageCenter) if
 // there is not.  If |title| is nil, do not reset the title.
 - (void)setBookmarkCellText:(NSString*)title
                       image:(NSImage*)image;
 
 // Set the color of text in this cell.
 - (void)setTextColor:(NSColor*)color;
 
 - (BOOL)isFolderButtonCell;
+- (void)setBookmarkNode:(const bookmarks::BookmarkNode*)node
+                  image:(NSImage*)image;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_BUTTON_CELL_H_