Revert "Move some scroll invalidations to the paint invalidation phase"

Source/core/rendering/compositing/RenderLayerCompositor.cpp

Index: Source/core/rendering/compositing/RenderLayerCompositor.cpp
diff --git a/Source/core/rendering/compositing/RenderLayerCompositor.cpp b/Source/core/rendering/compositing/RenderLayerCompositor.cpp
index 7631e23ea09820be19b28f8488a2edb11c1c3c29..321f9aa33bbb6c5fc3fb762a9f83f721f1b4fad3 100644
--- a/Source/core/rendering/compositing/RenderLayerCompositor.cpp
+++ b/Source/core/rendering/compositing/RenderLayerCompositor.cpp
@@ -297,22 +297,6 @@ void RenderLayerCompositor::updateWithoutAcceleratedCompositing(CompositingUpdat
 #endif
 }
 
-static void forceRecomputePaintInvalidationRectsIncludingNonCompositingDescendants(RenderObject* renderer)
-{
-    // We clear the previous paint invalidation rect as it's wrong (paint invaliation container
-    // changed, ...). Forcing a full invalidation will make us recompute it. Also we are not
-    // changing the previous position from our paint invalidation container, which is fine as
-    // we want a full paint invalidation anyway.
-    renderer->setPreviousPaintInvalidationRect(LayoutRect());
-    renderer->setShouldDoFullPaintInvalidation();
-
-    for (RenderObject* child = renderer->slowFirstChild(); child; child = child->nextSibling()) {
-        if (!child->isPaintInvalidationContainer())
-            forceRecomputePaintInvalidationRectsIncludingNonCompositingDescendants(child);
-    }
-}
-
-
 void RenderLayerCompositor::updateIfNeeded()
 {
     CompositingUpdateType updateType = m_pendingUpdateType;