Moving fontSelector from StyleResolver to StyleEngine.

Source/core/dom/StyleEngine.h

Index: Source/core/dom/StyleEngine.h
diff --git a/Source/core/dom/StyleEngine.h b/Source/core/dom/StyleEngine.h
index 365cbc0de9be8ec9eeb47ebc91e5d1288c58e5e6..36c4b9d4bbbd48f888c77488994011240bd60e8d 100644
--- a/Source/core/dom/StyleEngine.h
+++ b/Source/core/dom/StyleEngine.h
@@ -163,7 +163,9 @@ public:
     void clearResolver();
     void clearMasterResolver();
 
-    CSSFontSelector* fontSelector();
+    CSSFontSelector* fontSelector() { return m_fontSelector.get(); }
+    void resetFontSelector();
+
     void didAttach();
     void didDetach();
     bool shouldClearResolver() const;
@@ -231,6 +233,8 @@ private:
     unsigned m_lastResolverAccessCount;
     Timer<StyleEngine> m_resolverThrowawayTimer;
     OwnPtr<StyleResolver> m_resolver;
+
+    RefPtr<CSSFontSelector> m_fontSelector;
 };
 
 }