Delete PaintInvalidationState. It's unused.

sky/engine/core/rendering/RenderView.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 133 matching lines @@
     LayoutState rootLayoutState(*this);
 
     layoutContent();
 
 #if ENABLE(ASSERT)
     checkLayoutState();
 #endif
     clearNeedsLayout();
 }
 
-void RenderView::mapLocalToContainer(const RenderLayerModelObject* paintInvalidationContainer, TransformState& transformState, MapCoordinatesFlags mode, const PaintInvalidationState* paintInvalidationState) const
+void RenderView::mapLocalToContainer(const RenderLayerModelObject* paintInvalidationContainer, TransformState& transformState, MapCoordinatesFlags mode) const
 {
     if (!paintInvalidationContainer && mode & UseTransforms && shouldUseTransformFromContainer(0)) {
         TransformationMatrix t;
         getTransformFromContainer(0, LayoutSize(), t);
         transformState.applyTransform(t);
     }
 }
 
 const RenderObject* RenderView::pushMappingToContainer(const RenderLayerModelObject* ancestorToStopAt, RenderGeometryMap& geometryMap) const
 {
@@ skipping 316 matching lines @@
     m_iframes.remove(iframe);
 }
 
 void RenderView::updateIFramesAfterLayout()
 {
     for (auto& iframe: m_iframes)
         iframe->updateWidgetBounds();
 }
 
 } // namespace blink