Stop storing ScriptValue in MessageEvent

third_party/WebKit/Source/bindings/core/v8/custom/V8MessageEventCustom.cpp

Index: third_party/WebKit/Source/bindings/core/v8/custom/V8MessageEventCustom.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/custom/V8MessageEventCustom.cpp b/third_party/WebKit/Source/bindings/core/v8/custom/V8MessageEventCustom.cpp
index e56c2f03d6b7bd59788a2be792167943108c221d..4069e6ec822c9fe2205e056ed0e6c4d2daf38374 100644
--- a/third_party/WebKit/Source/bindings/core/v8/custom/V8MessageEventCustom.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/custom/V8MessageEventCustom.cpp
@@ -57,12 +57,12 @@ void V8MessageEvent::dataAttributeGetterCustom(
   }
 
   MessageEvent* event = V8MessageEvent::toImpl(info.Holder());
+  ScriptState* script_state = ScriptState::Current(isolate);
 
   v8::Local<v8::Value> result;
   switch (event->GetDataType()) {
-    case MessageEvent::kDataTypeScriptValue:
-      result =
-          event->DataAsScriptValue().V8ValueFor(ScriptState::Current(isolate));
+    case MessageEvent::kDataTypeV8Reference:
+      result = event->DataAsScriptValue(script_state).V8ValueFor(script_state);
       if (result.IsEmpty())
         result = v8::Null(isolate);
       break;