Fix layout issue with overflow extensions view.

Bug: 913274
Change-Id: I8ca09d553d4cce55887604f07300aa0685a7f498
Reviewed-on: https://chromium-review.googlesource.com/c/1372309Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Dana Fried <dfried@chromium.org>
Cr-Commit-Position: refs/heads/master@{#615662}

ui/views/controls/menu/menu_item_view.cc

@@ -619,6 +619,10 @@ void MenuItemView::Layout() {
     View* child = child_at(0);
     gfx::Size size = child->GetPreferredSize();
     child->SetBounds(0, GetTopMargin(), size.width(), size.height());
+    // TODO(crbug/913998): this is a hack. We should change
+    // ExtensionToolbarMenuView so that it does not move itself when laid out,
+    // and accomplish the same thing via insets or similar.
+    child->Layout();
   } else {
     // Child views are laid out right aligned and given the full height. To
     // right align start with the last view and progress to the first.