Skeleton implementation of CSS Properties and Values API

third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h

Index: third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h
diff --git a/third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h b/third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h
index 5dd986b8db1dfa14eff6c5ad8ddf1f935c7fd579..9ec7c4aebe248ee32bd35024a46e9996c02e2dbf 100644
--- a/third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h
+++ b/third_party/WebKit/Source/core/css/resolver/CSSVariableResolver.h
@@ -17,19 +17,23 @@ class CSSParserTokenRange;
 class CSSPendingSubstitutionValue;
 class CSSVariableData;
 class CSSVariableReferenceValue;
+class PropertyRegistry;
 class StyleResolverState;
 class StyleVariableData;
 
 class CSSVariableResolver {
+    STACK_ALLOCATED();
 public:
-    static void resolveVariableDefinitions(StyleVariableData*);
+    static void resolveVariableDefinitions(const StyleResolverState&);
     static const CSSValue* resolvePendingSubstitutions(StyleResolverState&, CSSPropertyID, const CSSPendingSubstitutionValue&);
 
     // Shorthand properties are not supported.
     static const CSSValue* resolveVariableReferences(const StyleResolverState&, CSSPropertyID, const CSSVariableReferenceValue&);
 
+    DECLARE_TRACE();
+
 private:
-    CSSVariableResolver(StyleVariableData*);
+    CSSVariableResolver(const StyleResolverState&);
 
     // These return false if we encounter a reference to an invalid variable with no fallback
 
@@ -49,7 +53,9 @@ private:
     // Resolves the CSSVariableData from a custom property declaration
     PassRefPtr<CSSVariableData> resolveCustomProperty(AtomicString name, const CSSVariableData&);
 
+    const StyleResolverState& m_styleResolverState;
     StyleVariableData* m_styleVariableData;
+    Member<const PropertyRegistry> m_registry;
     HashSet<AtomicString> m_variablesSeen;
     // Resolution doesn't finish when a cycle is detected. Fallbacks still
     // need to be tracked for additional cycles, and invalidation only