Remove zoom() and effectiveZoom().

sky/engine/core/css/FontSize.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 20 matching lines @@
 
 enum ESmartMinimumForFontSize { DoNotUseSmartMinimumForFontSize, UseSmartMinimumForFontFize };
 
 class FontSize {
 private:
     FontSize()
     {
     }
 
 public:
-    static float getComputedSizeFromSpecifiedSize(const Document*, float zoomFactor, bool isAbsoluteSize, float specifiedSize, ESmartMinimumForFontSize = UseSmartMinimumForFontFize);
+    static float getComputedSizeFromSpecifiedSize(const Document*, bool isAbsoluteSize, float specifiedSize, ESmartMinimumForFontSize = UseSmartMinimumForFontFize);
 
     // Given a CSS keyword in the range (xx-small to -webkit-xxx-large), this function will return
     // the correct font size scaled relative to the user's default (medium).
     static float fontSizeForKeyword(const Document*, CSSValueID keyword, FixedPitchFontType);
 
     // Given a font size in pixel, this function will return legacy font size between 1 and 7.
     static int legacyFontSize(const Document*, int pixelFontSize, FixedPitchFontType);
 };
 
 } // namespace blink
 
 #endif // FontSize_h