Extend contextMenus API to support browser/page actions

chrome/browser/extensions/extension_context_menu_model.h

Index: chrome/browser/extensions/extension_context_menu_model.h
diff --git a/chrome/browser/extensions/extension_context_menu_model.h b/chrome/browser/extensions/extension_context_menu_model.h
index 4685b6c9f42def7fe89997d542f87f85b64a12f7..511f16c2c71c9f88034a0cc5f4aa59e77d53540b 100644
--- a/chrome/browser/extensions/extension_context_menu_model.h
+++ b/chrome/browser/extensions/extension_context_menu_model.h
@@ -8,7 +8,9 @@
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
+#include "chrome/browser/extensions/context_menu_matcher.h"
 #include "chrome/browser/extensions/extension_uninstall_dialog.h"
+#include "chrome/browser/extensions/menu_manager.h"
 #include "ui/base/models/simple_menu_model.h"
 
 class Browser;
@@ -98,6 +100,16 @@ class ExtensionContextMenuModel
   // Keeps track of the extension uninstall dialog.
   scoped_ptr<extensions::ExtensionUninstallDialog> extension_uninstall_dialog_;
 
+  extensions::ContextMenuMatcher extension_items_;
+
+  void AppendExtensionItems();
+
+  static bool MenuItemMatchesParams(const extensions::MenuItem* item);
+
+  base::string16 PrintableSelectionText();
+
+  void EscapeAmpersands(base::string16* text);
+
   DISALLOW_COPY_AND_ASSIGN(ExtensionContextMenuModel);
 };