Remove REM units.

sky/engine/core/css/StyleSheetContents.h

Index: sky/engine/core/css/StyleSheetContents.h
diff --git a/sky/engine/core/css/StyleSheetContents.h b/sky/engine/core/css/StyleSheetContents.h
index 5419f26f39b95be441ff92c4515c76309d760d3a..85d45210ff40aaa38b883cba2e6cf6e7982fb7f5 100644
--- a/sky/engine/core/css/StyleSheetContents.h
+++ b/sky/engine/core/css/StyleSheetContents.h
@@ -55,12 +55,9 @@ public:
     bool parseString(const String&);
 
     void parserAppendRule(PassRefPtr<StyleRuleBase>);
-    void parserSetUsesRemUnits(bool b) { m_usesRemUnits = b; }
 
     const Vector<RefPtr<StyleRuleBase> >& childRules() const { return m_childRules; }
 
-    bool usesRemUnits() const { return m_usesRemUnits; }
-
     void registerClient(CSSStyleSheet*);
     void unregisterClient(CSSStyleSheet*);
 
@@ -75,7 +72,6 @@ public:
 private:
     explicit StyleSheetContents(const CSSParserContext&);
 
-    bool m_usesRemUnits : 1;
     bool m_hasMediaQueries : 1;
 
     OwnPtr<RuleSet> m_ruleSet;