Contributed by Eriq Augustine <eriq.augustine@gmail.com>

chrome/browser/extensions/extension_menu_manager.h

 // Copyright (c) 2011 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_EXTENSIONS_EXTENSION_MENU_MANAGER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_MENU_MANAGER_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 232 matching lines @@
 
   // This returns a bitmap of width/height kFaviconSize, loaded either from an
   // entry specified in the extension's 'icon' section of the manifest, or a
   // default extension icon.
   const SkBitmap& GetIconForExtension(const std::string& extension_id);
 
   // Implements the content::NotificationObserver interface.
   virtual void Observe(int type, const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
+  // Sanitize radio buttons so that and run of radio buttons does not

[asargent_no_longer_on_chrome, 2011/12/15 18:38:40]

typo: "and run" -> "a run"

+  // enter a state where none are checked.
+  void SanitizeRadioButtons();
+
  private:
   FRIEND_TEST_ALL_PREFIXES(ExtensionMenuManagerTest, DeleteParent);
   FRIEND_TEST_ALL_PREFIXES(ExtensionMenuManagerTest, RemoveOneByOne);
 
   // This is a helper function which takes care of de-selecting any other radio
   // items in the same group (i.e. that are adjacent in the list).
   void RadioItemSelected(ExtensionMenuItem* item);
 
   // Returns true if item is a descendant of an item with id |ancestor_id|.
   bool DescendantOf(ExtensionMenuItem* item,
                     const ExtensionMenuItem::Id& ancestor_id);
 
+  // Recursivly looks for a run of radio items. If on is found that

[asargent_no_longer_on_chrome, 2011/12/15 18:38:40]

typo: "Recursivly" -> "Recursively"
typo: "If on" -> "If one"

+  // does not have any selected item, select the first one.
+  void RecursiveSanitizeRadioButtons(const ExtensionMenuItem::List& item_list);
+
   // We keep items organized by mapping an extension id to a list of items.
   typedef std::map<std::string, ExtensionMenuItem::List> MenuItemMap;
   MenuItemMap context_items_;
 
   // This lets us make lookup by id fast. It maps id to ExtensionMenuItem* for
   // all items the menu manager knows about, including all children of top-level
   // items.
   std::map<ExtensionMenuItem::Id, ExtensionMenuItem*> items_by_id_;
 
   content::NotificationRegistrar registrar_;
 
   ExtensionIconManager icon_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionMenuManager);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_MENU_MANAGER_H_