Made StyleEngine CSSFontSelectorClient instead of StyleResolver.

Source/core/css/resolver/StyleResolver.cpp

Index: Source/core/css/resolver/StyleResolver.cpp
diff --git a/Source/core/css/resolver/StyleResolver.cpp b/Source/core/css/resolver/StyleResolver.cpp
index 9878f21af0ef2732cc3142665bc8aa5f5714481d..60a1020807627688d3ff8529feaf9bdb36eb8f75 100644
--- a/Source/core/css/resolver/StyleResolver.cpp
+++ b/Source/core/css/resolver/StyleResolver.cpp
@@ -347,12 +347,6 @@ void StyleResolver::clearStyleSharingList()
     m_styleSharingLists.resize(0);
 }
 
-void StyleResolver::fontsNeedUpdate(CSSFontSelector* fontSelector)
-{
-    invalidateMatchedPropertiesCache();
-    m_document.setNeedsStyleRecalc(SubtreeStyleChange);
-}
-
 void StyleResolver::pushParentElement(Element& parent)
 {
     const ContainerNode* parentsParent = parent.parentOrShadowHostElement();
@@ -1506,7 +1500,6 @@ void StyleResolver::trace(Visitor* visitor)
     visitor->trace(m_watchedSelectorsRules);
     visitor->trace(m_treeBoundaryCrossingRules);
     visitor->trace(m_pendingStyleSheets);
-    CSSFontSelectorClient::trace(visitor);
 }
 
 } // namespace WebCore