Implement ModuleScript::RunScript()

third_party/WebKit/Source/core/dom/ModuleScript.h

Index: third_party/WebKit/Source/core/dom/ModuleScript.h
diff --git a/third_party/WebKit/Source/core/dom/ModuleScript.h b/third_party/WebKit/Source/core/dom/ModuleScript.h
index f33417973291c05e410a8cb418bb2b368a32035e..d3c6786e4644ee2f6b098b9102cdbfaaae1d4b8d 100644
--- a/third_party/WebKit/Source/core/dom/ModuleScript.h
+++ b/third_party/WebKit/Source/core/dom/ModuleScript.h
@@ -42,7 +42,7 @@ class CORE_EXPORT ModuleScript final : public Script, public TraceWrapperBase {
   }
   ~ModuleScript() override = default;
 
-  ScriptModule& Record() { return record_; }
+  const ScriptModule& Record() const { return record_; }
   const KURL& BaseURL() const { return base_url_; }
 
   ModuleInstantiationState InstantiationState() const {
@@ -62,6 +62,10 @@ class CORE_EXPORT ModuleScript final : public Script, public TraceWrapperBase {
   }
   const String& Nonce() const { return nonce_; }
 
+  v8::Local<v8::Value> CreateInstantiationError(v8::Isolate* isolate) const {
+    return instantiation_error_.NewLocal(isolate);
+  }
+
   DECLARE_TRACE();
   DECLARE_TRACE_WRAPPERS();