Remove FontDescription::mutableFontDescription

Source/core/rendering/style/RenderStyle.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Adobe Systems Incorporated. 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 1211 matching lines @@
     // Negative value means the line height is not set. Use the font's built-in spacing.
     if (lh.isNegative())
         return fontMetrics().lineSpacing();
 
     if (lh.isPercent())
         return minimumValueForLength(lh, fontSize());
 
     return lh.value();
 }
 
-void RenderStyle::setWordSpacing(float v) { inherited.access()->font.mutableFontDescription().setWordSpacing(v); }
-void RenderStyle::setLetterSpacing(float v) { inherited.access()->font.mutableFontDescription().setLetterSpacing(v); }
+void RenderStyle::setWordSpacing(float wordSpacing)
+{
+    FontSelector* currentFontSelector = font().fontSelector();
+    FontDescription desc(fontDescription());
+    desc.setWordSpacing(wordSpacing);
+    setFontDescription(desc);
+    font().update(currentFontSelector);
+}
+
+void RenderStyle::setLetterSpacing(float letterSpacing)
+{
+    FontSelector* currentFontSelector = font().fontSelector();
+    FontDescription desc(fontDescription());
+    desc.setLetterSpacing(letterSpacing);
+    setFontDescription(desc);
+    font().update(currentFontSelector);
+}
 
 void RenderStyle::setFontSize(float size)
 {
     // size must be specifiedSize if Text Autosizing is enabled, but computedSize if text
     // zoom is enabled (if neither is enabled it's irrelevant as they're probably the same).
 
     ASSERT(std::isfinite(size));
     if (!std::isfinite(size) || size < 0)
         size = 0;
     else
@@ skipping 396 matching lines @@
     // right
     radiiSum = radii.topRight().height() + radii.bottomRight().height();
     if (radiiSum > rect.height())
         factor = std::min(rect.height() / radiiSum, factor);
 
     ASSERT(factor <= 1);
     return factor;
 }
 
 } // namespace WebCore