| Index: Source/core/rendering/RenderView.h
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| diff --git a/Source/core/rendering/RenderView.h b/Source/core/rendering/RenderView.h
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| index 7b38c956150dcc4781dda6f96ae4d7eb10a70668..9dc9ad4b173edbb7241ceee347ca7bdcb149f39a 100644
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| --- a/Source/core/rendering/RenderView.h
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| +++ b/Source/core/rendering/RenderView.h
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| @@ -59,6 +59,8 @@ public:
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|      virtual void updateLogicalWidth() OVERRIDE;
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|      virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues&) const OVERRIDE;
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|  
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| +    virtual bool supportsPartialLayout() const OVERRIDE { return true; }
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| +
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|      virtual LayoutUnit availableLogicalHeight(AvailableLogicalHeightType) const OVERRIDE;
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|  
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|      // The same as the FrameView's layoutHeight/layoutWidth but with null check guards.
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| 
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