Store registered property InterpolationTypes in PropertyRegistration

third_party/WebKit/Source/core/dom/Document.cpp

Index: third_party/WebKit/Source/core/dom/Document.cpp
diff --git a/third_party/WebKit/Source/core/dom/Document.cpp b/third_party/WebKit/Source/core/dom/Document.cpp
index 3bc2657a5f609d7db757599f8e4dbe79d87420f1..2366d0def45008beec7779c47297b5f9852ed2b2 100644
--- a/third_party/WebKit/Source/core/dom/Document.cpp
+++ b/third_party/WebKit/Source/core/dom/Document.cpp
@@ -6446,6 +6446,11 @@ PropertyRegistry* Document::propertyRegistry() {
   return m_propertyRegistry;
 }
 
+const PropertyRegistry* Document::propertyRegistry() const {
+  DCHECK(!m_propertyRegistry || RuntimeEnabledFeatures::cssVariables2Enabled());
+  return m_propertyRegistry;
+}
+
 void Document::incrementPasswordCount() {
   ++m_passwordCount;
   if (isSecureContext() || m_passwordCount != 1) {