Delete RenderLayerRepainter.

sky/engine/core/rendering/RenderLayer.h

Index: sky/engine/core/rendering/RenderLayer.h
diff --git a/sky/engine/core/rendering/RenderLayer.h b/sky/engine/core/rendering/RenderLayer.h
index e18ba79ffa9ca7d4dbdc235bfdc54df0f824dfc0..1d44b0e2840aeed1d523243a71e1c0e66ebbfe66 100644
--- a/sky/engine/core/rendering/RenderLayer.h
+++ b/sky/engine/core/rendering/RenderLayer.h
@@ -49,7 +49,6 @@
 #include "sky/engine/core/rendering/RenderBox.h"
 #include "sky/engine/core/rendering/RenderLayerClipper.h"
 #include "sky/engine/core/rendering/RenderLayerFilterInfo.h"
-#include "sky/engine/core/rendering/RenderLayerRepainter.h"
 #include "sky/engine/core/rendering/RenderLayerScrollableArea.h"
 #include "sky/engine/core/rendering/RenderLayerStackingNode.h"
 #include "sky/engine/core/rendering/RenderLayerStackingNodeIterator.h"
@@ -277,7 +276,6 @@ public:
 
     // FIXME: This should probably return a ScrollableArea but a lot of internal methods are mistakenly exposed.
     RenderLayerScrollableArea* scrollableArea() const { return m_scrollableArea.get(); }
-    RenderLayerRepainter& paintInvalidator() { return m_paintInvalidator; }
     RenderLayerClipper& clipper() { return m_clipper; }
     const RenderLayerClipper& clipper() const { return m_clipper; }
 
@@ -554,7 +552,6 @@ private:
 
     OwnPtr<RenderLayerScrollableArea> m_scrollableArea;
 
-    RenderLayerRepainter m_paintInvalidator;
     RenderLayerClipper m_clipper; // FIXME: Lazily allocate?
     OwnPtr<RenderLayerStackingNode> m_stackingNode;