Fix clipping of content outside the bounds of the window.

sky/engine/core/rendering/RenderBox.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2006, 2007 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.
  *
@@ skipping 267 matching lines @@
         m_marginBox.setEnd(styleToUse->direction(), value);
     }
 
     virtual void absoluteQuads(Vector<FloatQuad>&) const override;
 
     bool hitTestLayer(RenderLayer* rootLayer, RenderLayer* containerLayer,
         const HitTestRequest& request, HitTestResult& result,
         const LayoutRect& hitTestRect, const HitTestLocation& hitTestLocation,
         const HitTestingTransformState* transformState = 0, double* zOffset = 0);
 
-    void paintLayer(GraphicsContext* context, RenderLayer* rootLayer, const IntRect& rect);
+    void paintLayer(GraphicsContext*, const LayerPaintingInfo&);
 
     virtual void layout() override;
     virtual void paint(PaintInfo&, const LayoutPoint&, Vector<RenderBox*>& layers) override;
     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset) override;
 
     virtual LayoutUnit minPreferredLogicalWidth() const override;
     virtual LayoutUnit maxPreferredLogicalWidth() const override;
 
     // FIXME: We should rename these back to overrideLogicalHeight/Width and have them store
     // the border-box height/width like the regular height/width accessors on RenderBox.
@@ skipping 185 matching lines @@
 private:
     void updateFromStyle();
 
     PassRefPtr<HitTestingTransformState> createLocalTransformState(
         RenderLayer* rootLayer, RenderLayer* containerLayer,
         const LayoutRect& hitTestRect, const HitTestLocation& hitTestLocation,
         const HitTestingTransformState* containerTransformState) const;
     bool hitTestNonLayerDescendants(const HitTestRequest& request, HitTestResult& result,
         const LayoutRect& layerBounds, const HitTestLocation& hitTestLocation);
 
-    void paintLayerContents(GraphicsContext* context, const LayerPaintingInfo& paintingInfo, const IntRect& rect);
+    void paintLayerContents(GraphicsContext*, const LayerPaintingInfo&);
 
     void shrinkToFitWidth(const LayoutUnit availableSpace, const LayoutUnit logicalLeftValue, const LayoutUnit bordersPlusPadding, LogicalExtentComputedValues&) const;
 
     bool skipContainingBlockForPercentHeightCalculation(const RenderBox* containingBlock) const;
 
     LayoutUnit containingBlockLogicalWidthForPositioned(const RenderBoxModelObject* containingBlock) const;
     LayoutUnit containingBlockLogicalHeightForPositioned(const RenderBoxModelObject* containingBlock) const;
 
     void computePositionedLogicalHeight(LogicalExtentComputedValues&) const;
     void computePositionedLogicalWidthUsing(Length logicalWidth, const RenderBoxModelObject* containerBlock, TextDirection containerDirection,
@@ skipping 91 matching lines @@
         if (UNLIKELY(inlineBoxWrapper() != 0))
             deleteLineBoxWrapper();
     }
 
     ensureRareData().m_inlineBoxWrapper = boxWrapper;
 }
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_RENDERING_RENDERBOX_H_