Skeleton implementation of CSS Properties and Values API

third_party/WebKit/Source/core/css/CSSVariableData.h

Index: third_party/WebKit/Source/core/css/CSSVariableData.h
diff --git a/third_party/WebKit/Source/core/css/CSSVariableData.h b/third_party/WebKit/Source/core/css/CSSVariableData.h
index 9d87799714d82b33022430387f0294ed0c9b07ab..5d3cb1b61eb27c03912c84c48ace505082f817d7 100644
--- a/third_party/WebKit/Source/core/css/CSSVariableData.h
+++ b/third_party/WebKit/Source/core/css/CSSVariableData.h
@@ -15,6 +15,7 @@
 namespace blink {
 
 class CSSParserTokenRange;
+class CSSSyntaxDescriptor;
 
 class CSSVariableData : public RefCounted<CSSVariableData> {
     WTF_MAKE_NONCOPYABLE(CSSVariableData);
@@ -30,7 +31,7 @@ public:
         return adoptRef(new CSSVariableData(resolvedTokens, unresolvedData.m_backingString));
     }
 
-    CSSParserTokenRange tokenRange() { return m_tokens; }
+    CSSParserTokenRange tokenRange() const { return m_tokens; }
 
     const Vector<CSSParserToken>& tokens() const { return m_tokens; }
 
@@ -38,6 +39,8 @@ public:
 
     bool needsVariableResolution() const { return m_needsVariableResolution; }
 
+    const CSSValue* parseForSyntax(const CSSSyntaxDescriptor&) const;
+
     StylePropertySet* propertySet();
 
 private: