Adds a bookmark menu. This is experimental. To turn on you need...

chrome/views/controls/button/menu_button.h

 // Copyright (c) 2006-2008 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_VIEWS_CONTROLS_BUTTON_MENU_BUTTON_H_
 #define CHROME_VIEWS_CONTROLS_BUTTON_MENU_BUTTON_H_
 
 #include <windows.h>
 
 #include "chrome/common/gfx/chrome_font.h"
@@ skipping 17 matching lines @@
 class MenuButton : public TextButton {
  public:
   //
   // Create a Button
   MenuButton(ButtonListener* listener,
              const std::wstring& text,
              ViewMenuDelegate* menu_delegate,
              bool show_menu_marker);
   virtual ~MenuButton();
 
+  void set_menu_delegate(ViewMenuDelegate* delegate) {
+    menu_delegate_ = delegate;
+  }
+
   // Activate the button (called when the button is pressed).
   virtual bool Activate();
 
   // Overridden to take into account the potential use of a drop marker.
   virtual gfx::Size GetPreferredSize();
   virtual void Paint(ChromeCanvas* canvas, bool for_drag);
 
   // These methods are overriden to implement a simple push button
   // behavior
   virtual bool OnMousePressed(const MouseEvent& e);
@@ skipping 41 matching lines @@
 
   // Whether or not we're showing a drop marker.
   bool show_menu_marker_;
 
   friend class TextButtonBackground;
 };
 
 }  // namespace views
 
 #endif  // CHROME_VIEWS_CONTROLS_BUTTON_MENU_BUTTON_H_