Put rare PaintLayer fields into PaintLayerRareData

third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp

Index: third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp
diff --git a/third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp b/third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp
index 84744848cfe370946fd1b638d8113ee47e8be747..51f933c0be2b4368b2fc7489eecee7103aea0fd5 100644
--- a/third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp
+++ b/third_party/WebKit/Source/core/page/scrolling/ScrollingCoordinator.cpp
@@ -657,7 +657,7 @@ void ScrollingCoordinator::touchEventTargetRectsDidChange()
     m_touchEventTargetRectsAreDirty = true;
 }
 
-void ScrollingCoordinator::updateScrollParentForGraphicsLayer(GraphicsLayer* child, PaintLayer* parent)
+void ScrollingCoordinator::updateScrollParentForGraphicsLayer(GraphicsLayer* child, const PaintLayer* parent)
 {
     WebLayer* scrollParentWebLayer = nullptr;
     if (parent && parent->hasCompositedLayerMapping())
@@ -666,7 +666,7 @@ void ScrollingCoordinator::updateScrollParentForGraphicsLayer(GraphicsLayer* chi
     child->setScrollParent(scrollParentWebLayer);
 }
 
-void ScrollingCoordinator::updateClipParentForGraphicsLayer(GraphicsLayer* child, PaintLayer* parent)
+void ScrollingCoordinator::updateClipParentForGraphicsLayer(GraphicsLayer* child, const PaintLayer* parent)
 {
     WebLayer* clipParentWebLayer = nullptr;
     if (parent && parent->hasCompositedLayerMapping())