Revert "Don't invalidate scrolling container layer when scrolling contents need invalidation"

Source/web/LinkHighlight.cpp

Index: Source/web/LinkHighlight.cpp
diff --git a/Source/web/LinkHighlight.cpp b/Source/web/LinkHighlight.cpp
index 7026255d9f6e30d2e41c55035bfce55fe66c405b..5e16b123c343713ab2200d1631fbec5433882891 100644
--- a/Source/web/LinkHighlight.cpp
+++ b/Source/web/LinkHighlight.cpp
@@ -108,7 +108,9 @@ void LinkHighlight::releaseResources()
 
 void LinkHighlight::attachLinkHighlightToCompositingLayer(const RenderLayerModelObject* paintInvalidationContainer)
 {
-    GraphicsLayer* newGraphicsLayer = paintInvalidationContainer->layer()->graphicsLayerBackingForScrolling();
+    GraphicsLayer* newGraphicsLayer = paintInvalidationContainer->layer()->graphicsLayerBacking();
+    if (!newGraphicsLayer->drawsContent())
+        newGraphicsLayer = paintInvalidationContainer->layer()->graphicsLayerBackingForScrolling();
     if (!newGraphicsLayer)
         return;