Dynamically calculate the number of extension icons to show per row in overflow

chrome/browser/ui/views/toolbar/wrench_menu.h

Index: chrome/browser/ui/views/toolbar/wrench_menu.h
diff --git a/chrome/browser/ui/views/toolbar/wrench_menu.h b/chrome/browser/ui/views/toolbar/wrench_menu.h
index db54925f9992b77c7bb2b1a23869c4f224c0e233..fbb70c7bb03d109fabefae0d6b8a024342b96127 100644
--- a/chrome/browser/ui/views/toolbar/wrench_menu.h
+++ b/chrome/browser/ui/views/toolbar/wrench_menu.h
@@ -18,6 +18,7 @@
 
 class BookmarkMenuDelegate;
 class Browser;
+class ExtensionToolbarMenuView;
 class WrenchMenuObserver;
 
 namespace ui {
@@ -177,6 +178,9 @@ class WrenchMenu : public views::MenuDelegate,
   // Used for managing "Recent tabs" menu items.
   scoped_ptr<RecentTabsMenuModelDelegate> recent_tabs_menu_model_delegate_;
 
+  // The section of the menu for the overflowed extension icons.
+  scoped_ptr<ExtensionToolbarMenuView> extension_overflow_;
+
   content::NotificationRegistrar registrar_;
 
   // The bit mask of RunFlags.