Add Help wrench submenu

chrome/browser/ui/toolbar/wrench_menu_model.h

Index: chrome/browser/ui/toolbar/wrench_menu_model.h
diff --git a/chrome/browser/ui/toolbar/wrench_menu_model.h b/chrome/browser/ui/toolbar/wrench_menu_model.h
index 5dabbb520c556d3be3ca6332a23317ba3eac174a..fbade9a0f51de84c1f87912019ec853c02209a3d 100644
--- a/chrome/browser/ui/toolbar/wrench_menu_model.h
+++ b/chrome/browser/ui/toolbar/wrench_menu_model.h
@@ -138,8 +138,10 @@ class WrenchMenuModel : public ui::SimpleMenuModel,
   void UpdateZoomControls();
 
  private:
+  class HelpMenuModel;
   // Testing constructor used for mocking.
   friend class ::MockWrenchMenuModel;
+
   WrenchMenuModel();
 
   void Build(bool is_new_menu);
@@ -168,6 +170,11 @@ class WrenchMenuModel : public ui::SimpleMenuModel,
   // Label of the zoom label in the zoom menu item.
   base::string16 zoom_label_;
 
+#if defined(GOOGLE_CHROME_BUILD)
+  // Help menu.
+  scoped_ptr<HelpMenuModel> help_menu_model_;
+#endif
+
   // Tools menu.
   scoped_ptr<ToolsMenuModel> tools_menu_model_;