[Mac] Restore the old bookmark menus now that the experiment is over.

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

Index: chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.h
diff --git a/chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.h b/chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.h
index e9cc01236abdf5e91fb5c48a5dd8893a4d72272a..4ebee07a6cd743b45ccb3b2d6f1fab0822602fab 100644
--- a/chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.h
+++ b/chrome/browser/ui/cocoa/bookmarks/bookmark_button_cell.h
@@ -19,11 +19,23 @@ class BookmarkNode;
  @private
   BOOL empty_;  // is this an "empty" button placeholder button cell?
 
+  // Starting index of bookmarkFolder children that we care to use.
+  int startingChildIndex_;
+
+  // Should we draw the folder arrow as needed?  Not used for the bar
+  // itself but used on the folder windows.
+  BOOL drawFolderArrow_;
+
+  // Arrow for folders
+  scoped_nsobject<NSImage> arrowImage_;
+
   // Text color for title.
   scoped_nsobject<NSColor> textColor_;
 }
 
 @property(nonatomic, readwrite, assign) const BookmarkNode* bookmarkNode;
+@property(nonatomic, readwrite, assign) int startingChildIndex;
+@property(nonatomic, readwrite, assign) BOOL drawFolderArrow;
 
 // Create a button cell which draws with a theme.
 + (id)buttonCellForNode:(const BookmarkNode*)node
@@ -51,6 +63,8 @@ class BookmarkNode;
 // Set the color of text in this cell.
 - (void)setTextColor:(NSColor*)color;
 
+- (BOOL)isFolderButtonCell;
+
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_BUTTON_CELL_H_