Move RenderLayer repainting to repaint-after-layout framework.

Source/core/rendering/RenderBlock.cpp

Index: Source/core/rendering/RenderBlock.cpp
diff --git a/Source/core/rendering/RenderBlock.cpp b/Source/core/rendering/RenderBlock.cpp
index 2698c2af4ca393b0994bc2806bf222c0b40f2f3f..e13af0a9ef4e6812d4596c18949e51b741072b06 100644
--- a/Source/core/rendering/RenderBlock.cpp
+++ b/Source/core/rendering/RenderBlock.cpp
@@ -1740,6 +1740,8 @@ void RenderBlock::layoutPositionedObjects(bool relayoutChildren, PositionedLayou
     for (TrackedRendererListHashSet::iterator it = positionedDescendants->begin(); it != end; ++it) {
         r = *it;
 
+        LayoutRectRecorder recorder(*r);
+
         SubtreeLayoutScope layoutScope(r);
         // A fixed position element with an absolute positioned ancestor has no way of knowing if the latter has changed position. So
         // if this is a fixed position element, mark it for layout if it has an abspos ancestor and needs to move with that ancestor, i.e.