Fix issue with hit testing on the layer tree.

cc/trees/layer_tree_impl.cc

Index: cc/trees/layer_tree_impl.cc
diff --git a/cc/trees/layer_tree_impl.cc b/cc/trees/layer_tree_impl.cc
index 96995554005ee5e5f84154cc98a1b4ceb544b831..ba11c49a77517cfd1c0a10725baf36d4afef5ea8 100644
--- a/cc/trees/layer_tree_impl.cc
+++ b/cc/trees/layer_tree_impl.cc
@@ -1684,10 +1684,7 @@ struct HitTestVisibleScrollableOrTouchableFunctor {
   bool operator()(LayerImpl* layer) const {
     return layer->IsDrawnRenderSurfaceLayerListMember() ||
            ScrollsAnyDrawnRenderSurfaceLayerListMember(layer) ||
-           !layer->touch_event_handler_region().IsEmpty() ||
-           layer->layer_tree_impl()->event_listener_properties(
-               EventListenerClass::kMouseWheel) !=
-               EventListenerProperties::kNone;
+           !layer->touch_event_handler_region().IsEmpty();
   }
 };