Remove most of visited link support.

sky/engine/core/dom/TextLinkColors.h

Index: sky/engine/core/dom/TextLinkColors.h
diff --git a/sky/engine/core/dom/TextLinkColors.h b/sky/engine/core/dom/TextLinkColors.h
index cbb3842dfa01f8a084c3b59b07fe9a09b9ed0939..74b9a6f172ff20b1b1fca5668f44dd4d012b7a92 100644
--- a/sky/engine/core/dom/TextLinkColors.h
+++ b/sky/engine/core/dom/TextLinkColors.h
@@ -44,20 +44,16 @@ public:
     Color textColor() const { return m_textColor; }
 
     const Color& linkColor() const { return m_linkColor; }
-    const Color& visitedLinkColor() const { return m_visitedLinkColor; }
     const Color& activeLinkColor() const { return m_activeLinkColor; }
     void setLinkColor(const Color& color) { m_linkColor = color; }
-    void setVisitedLinkColor(const Color& color) { m_visitedLinkColor = color; }
     void setActiveLinkColor(const Color& color) { m_activeLinkColor = color; }
     void resetLinkColor();
-    void resetVisitedLinkColor();
     void resetActiveLinkColor();
-    Color colorFromPrimitiveValue(const CSSPrimitiveValue*, Color currentColor, bool forVisitedLink = false) const;
+    Color colorFromPrimitiveValue(const CSSPrimitiveValue*, Color currentColor) const;
 private:
 
     Color m_textColor;
     Color m_linkColor;
-    Color m_visitedLinkColor;
     Color m_activeLinkColor;
 };