Extend contextMenus API to support browser/page actions

chrome/browser/extensions/context_menu_matcher.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_EXTENSIONS_CONTEXT_MENU_MATCHER_H_
 #define CHROME_BROWSER_EXTENSIONS_CONTEXT_MENU_MATCHER_H_
 
 #include <map>
 
 #include "base/callback.h"
@@ skipping 25 matching lines @@
 
   // The |filter| will be called on possibly matching menu items, and its
   // result is used to determine which items to actually append to the menu.
   ContextMenuMatcher(content::BrowserContext* context,
                      ui::SimpleMenuModel::Delegate* delegate,
                      ui::SimpleMenuModel* menu_model,
                      const base::Callback<bool(const MenuItem*)>& filter);
 
   // This is a helper function to append items for one particular extension.
   // The |index| parameter is used for assigning id's, and is incremented for
-  // each item actually added.
+  // each item actually added. |is_action_menu| is used for browser and page
+  // action context menus, in which menu items are not placed in submenus
+  // and the extension's icon is not shown.
   void AppendExtensionItems(const MenuItem::ExtensionKey& extension_key,
                             const base::string16& selection_text,
-                            int* index);
+                            int* index,
+                            bool is_action_menu);
 
   void Clear();
 
   // This function returns the top level context menu title of an extension
   // based on a printable selection text.
   base::string16 GetTopLevelContextMenuTitle(
       const MenuItem::ExtensionKey& extension_key,
       const base::string16& selection_text);
 
   bool IsCommandIdChecked(int command_id) const;
@@ skipping 13 matching lines @@
 
   MenuItem::List GetRelevantExtensionItems(
       const MenuItem::List& items,
       bool can_cross_incognito);
 
   // Used for recursively adding submenus of extension items.
   void RecursivelyAppendExtensionItems(const MenuItem::List& items,
                                        bool can_cross_incognito,
                                        const base::string16& selection_text,
                                        ui::SimpleMenuModel* menu_model,
-                                       int* index);
+                                       int* index,
+                                       bool is_action_menu_top_level);
 
   // Attempts to get an MenuItem given the id of a context menu item.
   extensions::MenuItem* GetExtensionMenuItem(int id) const;
 
   // This will set the icon on the most recently-added item in the menu_model_.
   void SetExtensionIcon(const std::string& extension_id);
 
   content::BrowserContext* browser_context_;
   ui::SimpleMenuModel* menu_model_;
   ui::SimpleMenuModel::Delegate* delegate_;
 
   base::Callback<bool(const MenuItem*)> filter_;
 
   // Maps the id from a context menu item to the MenuItem's internal id.
   std::map<int, extensions::MenuItem::Id> extension_item_map_;
 
   // Keep track of and clean up menu models for submenus.
   ScopedVector<ui::SimpleMenuModel> extension_menu_models_;
 
   DISALLOW_COPY_AND_ASSIGN(ContextMenuMatcher);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_CONTEXT_MENU_MATCHER_H_