Update PaintLayer size during layout, not after.

third_party/WebKit/Source/core/layout/LayoutBlock.cpp

Index: third_party/WebKit/Source/core/layout/LayoutBlock.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutBlock.cpp b/third_party/WebKit/Source/core/layout/LayoutBlock.cpp
index a7bb1d945ba7d3aa3b828f6a662d7bb50a699d9c..9a2d450de33887ae1c580319f140c82fa3681335 100644
--- a/third_party/WebKit/Source/core/layout/LayoutBlock.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutBlock.cpp
@@ -411,11 +411,7 @@ void LayoutBlock::RemoveLeftoverAnonymousBlock(LayoutBlock* child) {
 
 void LayoutBlock::UpdateAfterLayout() {
   InvalidateStickyConstraints();
-
-  // Update our scroll information if we're overflow:auto/scroll/hidden now that
-  // we know if we overflow or not.
-  if (HasOverflowClip())
-    Layer()->GetScrollableArea()->UpdateAfterLayout();
+  LayoutBox::UpdateAfterLayout();
 }
 
 void LayoutBlock::UpdateLayout() {
@@ -690,8 +686,6 @@ bool LayoutBlock::SimplifiedLayout() {
     ComputeOverflow(old_client_after_edge, true);
   }
 
-  UpdateLayerTransformAfterLayout();
-
   UpdateAfterLayout();
 
   ClearNeedsLayout();