Add registered custom property wrapping support to CSSAnimatableValueFactory

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 fdcb3f635ed95e4eb76e22d5aa96f43c3d38914f..dd686597bdff2afb4b06c8140f040842bc7f7919 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.cpp
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
@@ -1859,6 +1859,17 @@ const CSSValue* ComputedStyle::getRegisteredVariable(
              : nullptr;
 }
 
+const CSSValue* ComputedStyle::getRegisteredVariable(
+    const AtomicString& name) const {
+  // Registered custom properties are by default non-inheriting so check there
+  // first.
+  const CSSValue* result = getRegisteredVariable(name, false);
+  if (result) {
+    return result;
+  }
+  return getRegisteredVariable(name, true);
+}
+
 float ComputedStyle::wordSpacing() const {
   return getFontDescription().wordSpacing();
 }