Remove support for -webkit-color-correction (which we've never supported on

Source/core/platform/ScrollbarThemeComposite.cpp

 /*
  * Copyright (C) 2008 Apple 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 243 matching lines @@
 }
 
 int ScrollbarThemeComposite::trackLength(ScrollbarThemeClient* scrollbar)
 {
     IntRect constrainedTrackRect = constrainTrackRectToTrackPieces(scrollbar, trackRect(scrollbar));
     return (scrollbar->orientation() == HorizontalScrollbar) ? constrainedTrackRect.width() : constrainedTrackRect.height();
 }
 
 void ScrollbarThemeComposite::paintScrollCorner(ScrollView*, GraphicsContext* context, const IntRect& cornerRect)
 {
-    context->fillRect(cornerRect, Color::white, ColorSpaceDeviceRGB);
+    context->fillRect(cornerRect, Color::white);
 }
 
 IntRect ScrollbarThemeComposite::thumbRect(ScrollbarThemeClient* scrollbar)
 {
     if (!hasThumb(scrollbar))
         return IntRect();
 
     IntRect track = trackRect(scrollbar);
     IntRect startTrackRect;
     IntRect thumbRect;
     IntRect endTrackRect;
     splitTrack(scrollbar, track, startTrackRect, thumbRect, endTrackRect);
 
     return thumbRect;
 }
 
 void ScrollbarThemeComposite::paintOverhangAreas(ScrollView*, GraphicsContext* context, const IntRect& horizontalOverhangRect, const IntRect& verticalOverhangRect, const IntRect& dirtyRect)
-{    
-    context->setFillColor(Color::white, ColorSpaceDeviceRGB);
+{
+    context->setFillColor(Color::white);
     if (!horizontalOverhangRect.isEmpty())
         context->fillRect(intersection(horizontalOverhangRect, dirtyRect));
-
-    context->setFillColor(Color::white, ColorSpaceDeviceRGB);
     if (!verticalOverhangRect.isEmpty())
         context->fillRect(intersection(verticalOverhangRect, dirtyRect));
 }
 
 }