Trim FontSelector interface a bit.

Source/core/css/resolver/StyleResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 335 matching lines @@
     if (m_styleSharingList.size() >= styleSharingListSize)
         m_styleSharingList.remove(--m_styleSharingList.end());
     m_styleSharingList.prepend(&element);
 }
 
 void StyleResolver::clearStyleSharingList()
 {
     m_styleSharingList.clear();
 }
 
-void StyleResolver::fontsNeedUpdate(FontSelector* fontSelector)
+void StyleResolver::fontsNeedUpdate(CSSFontSelector* fontSelector)
 {
     invalidateMatchedPropertiesCache();
     m_document.setNeedsStyleRecalc();
 }
 
 void StyleResolver::pushParentElement(Element& parent)
 {
     const ContainerNode* parentsParent = parent.parentOrShadowHostElement();
 
     // We are not always invoked consistently. For example, script execution can cause us to enter
@@ skipping 1147 matching lines @@
 bool StyleResolver::mediaQueryAffectedByViewportChange() const
 {
     for (unsigned i = 0; i < m_viewportDependentMediaQueryResults.size(); ++i) {
         if (m_medium->eval(&m_viewportDependentMediaQueryResults[i]->m_expression) != m_viewportDependentMediaQueryResults[i]->m_result)
             return true;
     }
     return false;
 }
 
 } // namespace WebCore