A new menu system for views.

This is all the functionality needed for the page, app menus and browser system menus.

Review URL: http://codereview.chromium.org/119237

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17895 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/views/view.h b/views/view.h
index 967ce22..8075378 100644
--- a/views/view.h
+++ b/views/view.h
@@ -1180,7 +1180,7 @@
   // [0, registered_accelerator_count_) are already registered to FocusManager,
   // and the rest are not yet.
   scoped_ptr<std::vector<Accelerator> > accelerators_;
-  int registered_accelerator_count_;
+  size_t registered_accelerator_count_;
 
   // The menu controller.
   ContextMenuController* context_menu_controller_;