| Index: third_party/WebKit/Source/platform/scroll/ScrollbarThemeOverlay.h
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| diff --git a/third_party/WebKit/Source/platform/scroll/ScrollbarThemeOverlay.h b/third_party/WebKit/Source/platform/scroll/ScrollbarThemeOverlay.h
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| index 0772e2136ff5d47dbe0f8151b79f6ecf15aee58b..811cb6a1b3fbc6cc06c0178621bc56700c6347a5 100644
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| --- a/third_party/WebKit/Source/platform/scroll/ScrollbarThemeOverlay.h
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| +++ b/third_party/WebKit/Source/platform/scroll/ScrollbarThemeOverlay.h
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| @@ -81,6 +81,10 @@ class PLATFORM_EXPORT ScrollbarThemeOverlay : public ScrollbarTheme {
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|    void paintThumb(GraphicsContext&, const Scrollbar&, const IntRect&) override;
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|    ScrollbarPart hitTest(const ScrollbarThemeClient&, const IntPoint&) override;
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|  
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| +  bool usesNinePatchThumbResource() const override;
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| +  IntSize ninePatchThumbCanvasSize(const ScrollbarThemeClient&) const override;
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| +  IntRect ninePatchThumbAperture(const ScrollbarThemeClient&) const override;
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| +
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|    static ScrollbarThemeOverlay& mobileTheme();
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|  
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|   private:
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| 
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