Cascade declared property values instead of applying values on top of each other

Source/core/css/resolver/StyleResolver.h

Index: Source/core/css/resolver/StyleResolver.h
diff --git a/Source/core/css/resolver/StyleResolver.h b/Source/core/css/resolver/StyleResolver.h
index 320b4f6346eda64031891b262bf97dab31e6f1ce..df76601cd1367aaf4ea9c3c327da56edd961614c 100644
--- a/Source/core/css/resolver/StyleResolver.h
+++ b/Source/core/css/resolver/StyleResolver.h
@@ -197,6 +197,10 @@ public:
     void addToStyleSharingList(Element&);
     void clearStyleSharingList();
 
+    // FIXME: These should be either generated or moved to CascadedValues
+    static bool isValidFirstLetterStyleProperty(CSSPropertyID);
+    static bool isValidCueStyleProperty(CSSPropertyID);
+
     StyleResolverStats* stats() { return m_styleResolverStats.get(); }
     StyleResolverStats* statsTotals() { return m_styleResolverStatsTotals.get(); }
     enum StatsReportType { ReportDefaultStats, ReportSlowStats };
@@ -248,20 +252,15 @@ private:
         HighPriorityProperties,
         LowPriorityProperties
     };
-    template <StyleResolver::StyleApplicationPass pass>
+    template <StyleApplicationPass pass>
     static inline CSSPropertyID firstCSSPropertyId();
-    template <StyleResolver::StyleApplicationPass pass>
-    static inline CSSPropertyID lastCSSPropertyId();
-    template <StyleResolver::StyleApplicationPass pass>
-    static inline bool isPropertyForPass(CSSPropertyID);
     template <StyleApplicationPass pass>
-    void applyMatchedProperties(StyleResolverState&, const MatchResult&, bool important, int startIndex, int endIndex, bool inheritedOnly);
+    static inline CSSPropertyID lastCSSPropertyId();
     template <StyleApplicationPass pass>
-    void applyProperties(StyleResolverState&, const StylePropertySet* properties, StyleRule*, bool isImportant, bool inheritedOnly, PropertyWhitelistType = PropertyWhitelistNone);
+    static inline bool isPropertyForPass(CSSPropertyID);
+
     template <StyleApplicationPass pass>
     void applyAnimatedProperties(StyleResolverState&, const WillBeHeapHashMap<CSSPropertyID, RefPtrWillBeMember<Interpolation> >&);
-    template <StyleResolver::StyleApplicationPass pass>
-    void applyAllProperty(StyleResolverState&, CSSValue*);
 
     void matchPageRules(MatchResult&, RuleSet*, bool isLeftPage, bool isFirstPage, const String& pageName);
     void matchPageRulesForList(WillBeHeapVector<RawPtrWillBeMember<StyleRulePage> >& matchedRules, const WillBeHeapVector<RawPtrWillBeMember<StyleRulePage> >&, bool isLeftPage, bool isFirstPage, const String& pageName);