Remove mask painting.

sky/engine/core/rendering/RenderReplaced.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011-2012. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 75 matching lines @@
     setNeedsLayoutAndPrefWidthsRecalc();
 }
 
 void RenderReplaced::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
 {
     if (!shouldPaint(paintInfo, paintOffset))
         return;
 
     LayoutPoint adjustedPaintOffset = paintOffset + location();
 
-    if (paintInfo.phase == PaintPhaseMask) {
-        paintMask(paintInfo, adjustedPaintOffset);
-        return;
-    }
-
     if (hasBoxDecorationBackground())
         paintBoxDecorationBackground(paintInfo, adjustedPaintOffset);
 
     LayoutRect paintRect = LayoutRect(adjustedPaintOffset, size());
     if (style()->outlineWidth())
         paintOutline(paintInfo, paintRect);
 
     bool completelyClippedOut = false;
     if (style()->hasBorderRadius()) {
         LayoutRect borderRect = LayoutRect(adjustedPaintOffset, size());
@@ skipping 349 matching lines @@
     if (s == SelectionEnd)
         return selectionEnd == end;
     if (s == SelectionBoth)
         return selectionStart == 0 && selectionEnd == end;
 
     ASSERT(0);
     return false;
 }
 
 }