Generate nonproperty 'variableReference' in ComputedStyleBase.

third_party/WebKit/Source/core/style/ComputedStyle.cpp

Index: third_party/WebKit/Source/core/style/ComputedStyle.cpp
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.cpp b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
index c22b97a036b107d9bcdbb0bcafdd305749bec340..e4f24e005bee513d9a4e1a402542a26e95300fbe 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.cpp
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
@@ -392,7 +392,7 @@ void ComputedStyle::copyNonInheritedFromCached(const ComputedStyle& other) {
 
   // styles with non inherited properties that reference variables are not
   // cacheable.
-  DCHECK(!other.m_nonInheritedData.m_variableReference);
+  DCHECK(!other.hasVariableReferenceFromNonInheritedProperty());
 
   // The following flags are set during matching before we decide that we get a
   // match in the MatchedPropertiesCache which in turn calls this method. The