Disallow setting invalid values for registered properties via 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 edf15327815ac3a3577e500375fa7d3a32e60927..f4a3bbd703ff1e6262de8f695e58b5c3f887c455 100644
--- a/third_party/WebKit/Source/core/css/StylePropertySet.h
+++ b/third_party/WebKit/Source/core/css/StylePropertySet.h
@@ -38,6 +38,7 @@ namespace blink {
 class CSSStyleDeclaration;
 class ImmutableStylePropertySet;
 class MutableStylePropertySet;
+class PropertyRegistry;
 class StyleSheetContents;
 
 class CORE_EXPORT StylePropertySet
@@ -234,6 +235,7 @@ class CORE_EXPORT MutableStylePropertySet : public StylePropertySet {
                         bool important = false,
                         StyleSheetContents* contextStyleSheet = 0);
   SetResult setProperty(const AtomicString& customPropertyName,
+                        const PropertyRegistry*,
                         const String& value,
                         bool important,
                         StyleSheetContents* contextStyleSheet,