Fixes painting regression. The problem was I optimized to only send to

views/widget/widget.cc

Index: views/widget/widget.cc
diff --git a/views/widget/widget.cc b/views/widget/widget.cc
index 5b305c41736450597877828f416eae51a82b78e9..029b92025cc87ea3ba31e3d4d58e2c365c1388ec 100644
--- a/views/widget/widget.cc
+++ b/views/widget/widget.cc
@@ -1110,10 +1110,10 @@ bool Widget::ShouldReleaseCaptureOnMouseReleased() const {
 }
 
 void Widget::SetInactiveRenderingDisabled(bool value) {
-  if (value == disable_inactive_rendering_)
-    return;
-
   disable_inactive_rendering_ = value;
+  // We need to always notify the NonClientView so that it can trigger a paint.
+  // TODO: what's really needed is a way to know when either the active state
+  // changes or |disable_inactive_rendering_| changes.
   if (non_client_view_)
     non_client_view_->SetInactiveRenderingDisabled(value);
   native_widget_->SetInactiveRenderingDisabled(value);