[Variables] Enable get/setProperty and similar APIs from the CSSOM

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

Index: third_party/WebKit/Source/core/css/StylePropertySet.h
diff --git a/third_party/WebKit/Source/core/css/StylePropertySet.h b/third_party/WebKit/Source/core/css/StylePropertySet.h
index e88b4eea4a61d500af6a11c96115b6f85d132e77..951a63a29fd760d533dd226f1a89ff758308e874 100644
--- a/third_party/WebKit/Source/core/css/StylePropertySet.h
+++ b/third_party/WebKit/Source/core/css/StylePropertySet.h
@@ -23,6 +23,7 @@
 
 #include "core/CSSPropertyNames.h"
 #include "core/CoreExport.h"
+#include "core/css/CSSCustomPropertyDeclaration.h"
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/CSSProperty.h"
 #include "core/css/PropertySetCSSStyleDeclaration.h"
@@ -91,12 +92,16 @@ public:
     bool isEmpty() const;
     PropertyReference propertyAt(unsigned index) const { return PropertyReference(*this, index); }
     int findPropertyIndex(CSSPropertyID) const;
+    int findCustomPropertyIndex(const AtomicString& propertyName) const;
     bool hasProperty(CSSPropertyID property) const { return findPropertyIndex(property) != -1; }
 
     PassRefPtrWillBeRawPtr<CSSValue> getPropertyCSSValue(CSSPropertyID) const;
+    PassRefPtrWillBeRawPtr<CSSCustomPropertyDeclaration> getCustomPropertyCSSValue(const AtomicString&) const;
     String getPropertyValue(CSSPropertyID) const;
+    String getCustomPropertyValue(const AtomicString&) const;
 
     bool propertyIsImportant(CSSPropertyID) const;
+    bool customPropertyIsImportant(const AtomicString&) const;
     CSSPropertyID getPropertyShorthand(CSSPropertyID) const;
     bool isPropertyImplicit(CSSPropertyID) const;
 
@@ -157,6 +162,7 @@ public:
     const RawPtrWillBeMember<CSSValue>* valueArray() const;
     const StylePropertyMetadata* metadataArray() const;
     int findPropertyIndex(CSSPropertyID) const;
+    int findCustomPropertyIndex(const AtomicString& propertyName) const;
 
     DECLARE_TRACE_AFTER_DISPATCH();
 
@@ -198,12 +204,14 @@ public:
     // These expand shorthand properties into multiple properties.
     bool setProperty(CSSPropertyID unresolvedProperty, const String& value, bool important = false, StyleSheetContents* contextStyleSheet = 0);
     void setProperty(CSSPropertyID, PassRefPtrWillBeRawPtr<CSSValue>, bool important = false);
+    bool setCustomProperty(const AtomicString& propertyName, const String& value, bool important = false, StyleSheetContents* contextStyleSheet = 0);
 
     // These do not. FIXME: This is too messy, we can do better.
     bool setProperty(CSSPropertyID, CSSValueID identifier, bool important = false);
     bool setProperty(const CSSProperty&, CSSProperty* slot = 0);
 
     bool removeProperty(CSSPropertyID, String* returnText = 0);
+    bool removeCustomProperty(const AtomicString&, String* returnText = 0);
     bool removePropertiesInSet(const CSSPropertyID* set, unsigned length);
     void removeEquivalentProperties(const StylePropertySet*);
     void removeEquivalentProperties(const CSSStyleDeclaration*);
@@ -215,6 +223,7 @@ public:
 
     CSSStyleDeclaration* ensureCSSStyleDeclaration();
     int findPropertyIndex(CSSPropertyID) const;
+    int findCustomPropertyIndex(const AtomicString& propertyName) const;
 
     DECLARE_TRACE_AFTER_DISPATCH();
 
@@ -223,6 +232,8 @@ private:
     explicit MutableStylePropertySet(const StylePropertySet&);
     MutableStylePropertySet(const CSSProperty* properties, unsigned count);
 
+    bool removePropertyAtIndex(int, String* returnText);
+
     bool removeShorthandProperty(CSSPropertyID);
     CSSProperty* findCSSPropertyWithID(CSSPropertyID);
     OwnPtrWillBeMember<PropertySetCSSStyleDeclaration> m_cssomWrapper;
@@ -295,6 +306,13 @@ inline int StylePropertySet::findPropertyIndex(CSSPropertyID propertyID) const
     return toImmutableStylePropertySet(this)->findPropertyIndex(propertyID);
 }
 
+inline int StylePropertySet::findCustomPropertyIndex(const AtomicString& propertyName) const
+{
+    if (m_isMutable)
+        return toMutableStylePropertySet(this)->findCustomPropertyIndex(propertyName);
+    return toImmutableStylePropertySet(this)->findCustomPropertyIndex(propertyName);
+}
+
 } // namespace blink
 
 #endif // StylePropertySet_h