| Index: third_party/WebKit/Source/core/paint/PaintLayerPaintingInfo.h
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| diff --git a/third_party/WebKit/Source/core/paint/PaintLayerPaintingInfo.h b/third_party/WebKit/Source/core/paint/PaintLayerPaintingInfo.h
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| index bc1ca21b9a2670e56b3d3ed8ea9e3b5c67dfd74f..55ed9ddc7c94198f9294a01f473fd1ea86d8afb6 100644
 | 
| --- a/third_party/WebKit/Source/core/paint/PaintLayerPaintingInfo.h
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| +++ b/third_party/WebKit/Source/core/paint/PaintLayerPaintingInfo.h
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| @@ -96,7 +96,7 @@ struct PaintLayerPaintingInfo {
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|    GlobalPaintFlags GetGlobalPaintFlags() const { return global_paint_flags_; }
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|  
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|    // TODO(jchaffraix): We should encapsulate all these fields.
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| -  PaintLayer* root_layer;
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| +  const PaintLayer* root_layer;
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|    LayoutRect paint_dirty_rect;  // relative to rootLayer;
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|    LayoutSize sub_pixel_accumulation;
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|    IntSize scroll_offset_accumulation;
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| 
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