Use correct ScrollbarTheme to paintScrollCorner

third_party/WebKit/Source/core/paint/FramePainter.h

Index: third_party/WebKit/Source/core/paint/FramePainter.h
diff --git a/third_party/WebKit/Source/core/paint/FramePainter.h b/third_party/WebKit/Source/core/paint/FramePainter.h
index 7b0abcb2c78d32b12bdcc2dd22225d99144f513b..804eb650d1b2035cbc3990ccfb73010b479e65a7 100644
--- a/third_party/WebKit/Source/core/paint/FramePainter.h
+++ b/third_party/WebKit/Source/core/paint/FramePainter.h
@@ -15,6 +15,7 @@ class FrameView;
 class GraphicsContext;
 class IntRect;
 class Scrollbar;
+class ScrollbarTheme;
 
 class FramePainter {
   STACK_ALLOCATED();
@@ -26,7 +27,9 @@ class FramePainter {
   void paint(GraphicsContext&, const GlobalPaintFlags, const CullRect&);
   void paintScrollbars(GraphicsContext&, const IntRect&);
   void paintContents(GraphicsContext&, const GlobalPaintFlags, const IntRect&);
-  void paintScrollCorner(GraphicsContext&, const IntRect& cornerRect);
+  void paintScrollCorner(GraphicsContext&,
+                         ScrollbarTheme&,
+                         const IntRect& cornerRect);
 
  private:
   void paintScrollbar(GraphicsContext&, Scrollbar&, const IntRect&);