Use refs for GraphicsContext

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EllipsisBoxPainter_h
 #define EllipsisBoxPainter_h
 
 #include "wtf/Allocator.h"
 
 namespace blink {
@@ skipping 10 matching lines @@
 
 class EllipsisBoxPainter {
     STACK_ALLOCATED();
 public:
     EllipsisBoxPainter(const EllipsisBox& ellipsisBox) : m_ellipsisBox(ellipsisBox) { }
 
     void paint(const PaintInfo&, const LayoutPoint&, LayoutUnit lineTop, LayoutUnit lineBottom);
 
 private:
     void paintEllipsis(const PaintInfo&, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom, const ComputedStyle&);
-    void paintSelection(GraphicsContext*, const LayoutPoint&, const ComputedStyle&, const Font&);
+    void paintSelection(GraphicsContext&, const LayoutPoint&, const ComputedStyle&, const Font&);
 
     const EllipsisBox& m_ellipsisBox;
 };
 
 } // namespace blink
 
 #endif // EllipsisBoxPainter_h