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

chrome/browser/extensions/extension_menu_manager.h

Index: chrome/browser/extensions/extension_menu_manager.h
===================================================================
--- chrome/browser/extensions/extension_menu_manager.h	(revision 114114)
+++ chrome/browser/extensions/extension_menu_manager.h	(working copy)
@@ -250,6 +250,10 @@
   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);
@@ -262,6 +266,10 @@
   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_;