Reland r172943 "Make CSSFontFace::willUseFontData() load fonts with unicode-range"

Source/platform/fonts/Font.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2006, 2007, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Holger Hans Peter Freyther
  *
  * 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
@@ skipping 146 matching lines @@
 public:
     // Useful for debugging the different font rendering code paths.
     static void setCodePath(CodePath);
     static CodePath codePath();
     static CodePath s_codePath;
 
     FontSelector* fontSelector() const;
 
     FontFallbackList* fontList() const { return m_fontFallbackList.get(); }
 
-    void willUseFontData() const;
+    void willUseFontData(UChar32) const;
 
     static FloatRect pixelSnappedSelectionRect(float fromX, float toX, float y, float height);
 private:
     bool loadingCustomFonts() const
     {
         return m_fontFallbackList && m_fontFallbackList->loadingCustomFonts();
     }
 
     bool shouldSkipDrawing() const
     {
@@ skipping 35 matching lines @@
 {
     if (!tabSize)
         return fontDescription().letterSpacing();
     float tabWidth = tabSize * fontData.spaceWidth() + fontDescription().letterSpacing();
     return tabWidth - fmodf(position, tabWidth);
 }
 
 }
 
 #endif