Add internals.isCSSPropertyUseCounted functionality

third_party/WebKit/Source/core/testing/Internals.cpp

Index: third_party/WebKit/Source/core/testing/Internals.cpp
diff --git a/third_party/WebKit/Source/core/testing/Internals.cpp b/third_party/WebKit/Source/core/testing/Internals.cpp
index b64438310952189c839cc91f4cd6784215ab5d59..970b8c472ca389b447a3b04657cda5113395c64d 100644
--- a/third_party/WebKit/Source/core/testing/Internals.cpp
+++ b/third_party/WebKit/Source/core/testing/Internals.cpp
@@ -2490,6 +2490,11 @@ bool Internals::isUseCounted(Document* document, int useCounterId)
     return UseCounter::isCounted(*document, static_cast<UseCounter::Feature>(useCounterId));
 }
 
+bool Internals::isCSSPropertyUseCounted(Document* document, const String& propertyName)
+{
+    return UseCounter::isCounted(*document, propertyName);
+}
+
 String Internals::unscopeableAttribute()
 {
     return "unscopeableAttribute";