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 c5e76a9d796e090d948ec589d6f848b59f7ba822..9a4deb62788e4f209355469dcff25bcfe337af6f 100644
--- a/Source/core/rendering/RenderBlock.cpp
+++ b/Source/core/rendering/RenderBlock.cpp
@@ -1805,6 +1805,8 @@ void RenderBlock::layoutPositionedObjects(bool relayoutChildren, bool fixedPosit
     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.