Bug 1535507 - Don't force display item rebuilding for ActiveLayerTracker expiry, since we should only need to update the Layer tree. r=miko

Differential Revision: https://phabricator.services.mozilla.com/D23608

--HG--
extra : moz-landing-system : lando

layout/painting/ActiveLayerTracker.cpp

@@ -192,7 +192,7 @@ void LayerActivityTracker::NotifyExpired(LayerActivity* aObject) {
     // The pres context might have been detached during the delay -
     // that's fine, just skip the paint.
     if (f->PresContext()->GetContainerWeak()) {
-      f->SchedulePaint();
+      f->SchedulePaint(nsIFrame::PAINT_DEFAULT, false);
     }
     f->RemoveStateBits(NS_FRAME_HAS_LAYER_ACTIVITY_PROPERTY);
     f->DeleteProperty(LayerActivityProperty());