Handle titlebar text updates properly

ui/views/widget/widget.cc

Index: ui/views/widget/widget.cc
diff --git a/ui/views/widget/widget.cc b/ui/views/widget/widget.cc
index 51c4fe0b9fd905494e60387c3432417209c3babc..73e1cf0692bb5314d2b5608833645e45e4373297 100644
--- a/ui/views/widget/widget.cc
+++ b/ui/views/widget/widget.cc
@@ -735,8 +735,9 @@ void Widget::UpdateWindowTitle() {
     return;
 
   // If the non-client view is rendering its own title, it'll need to relayout
-  // now.
+  // now and to get a paint update later on.
   non_client_view_->Layout();
+  non_client_view_->UpdateWindowTitle();
 
   // Update the native frame's text. We do this regardless of whether or not
   // the native frame is being used, since this also updates the taskbar, etc.