Remove unnecessary 'const's

Source/platform/graphics/GraphicsContext.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008-2009 Torch Mobile, Inc.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 418 matching lines @@
     static void setRadii(SkVector*, IntSize, IntSize, IntSize, IntSize);
 
     static PassRefPtr<SkColorFilter> WebCoreColorFilterToSkiaColorFilter(ColorFilter);
 
 #if OS(MACOSX)
     static inline int focusRingOutset(int offset) { return offset + 2; }
     static inline int focusRingWidth(int width) { return width; }
 #else
     static inline int focusRingOutset(int offset) { return 0; }
     static inline int focusRingWidth(int width) { return 1; }
-    static const SkPMColor lineColors(int);
-    static const SkPMColor antiColors1(int);
-    static const SkPMColor antiColors2(int);
+    static SkPMColor lineColors(int);
+    static SkPMColor antiColors1(int);
+    static SkPMColor antiColors2(int);
     static void draw1xMarker(SkBitmap*, int);
     static void draw2xMarker(SkBitmap*, int);
 #endif
 
     // Helpers for drawing a focus ring (drawFocusRing)
     float prepareFocusRingPaint(SkPaint&, const Color&, int width) const;
     void drawFocusRingPath(const SkPath&, const Color&, int width);
     void drawFocusRingRect(const SkRect&, const Color&, int width);
 
 
@@ skipping 85 matching lines @@
     bool m_accelerated : 1;
     bool m_isCertainlyOpaque : 1;
     bool m_printing : 1;
     bool m_antialiasHairlineImages : 1;
     bool m_shouldSmoothFonts : 1;
 };
 
 } // namespace blink
 
 #endif // GraphicsContext_h