Enable module scripts in ScriptLoader

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

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ModuleScript_h
 #define ModuleScript_h
 
 #include "bindings/core/v8/ScriptModule.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/ScriptWrappable.h"
@@ skipping 22 matching lines @@
       ScriptModule record,
       const KURL& base_url,
       const String& nonce,
       ParserDisposition parser_state,
       WebURLRequest::FetchCredentialsMode credentials_mode) {
     return new ModuleScript(record, base_url, nonce, parser_state,
                             credentials_mode);
   }
   ~ModuleScript() override = default;
 
-  ScriptModule& Record() { return record_; }
+  const ScriptModule& Record() const { return record_; }
   void ClearRecord() { record_ = ScriptModule(); }
   const KURL& BaseURL() const { return base_url_; }
 
   ModuleInstantiationState InstantiationState() const {
     return instantiation_state_;
   }
 
   void SetInstantiationSuccess();
   void SetInstantiationError(v8::Isolate*, v8::Local<v8::Value> error);
 
   ParserDisposition ParserState() const { return parser_state_; }
   WebURLRequest::FetchCredentialsMode CredentialsMode() const {
     return credentials_mode_;
   }
   const String& Nonce() const { return nonce_; }
 
+  v8::Local<v8::Value> CreateInstantiationError(v8::Isolate* isolate) const {
+    return instantiation_error_.NewLocal(isolate);
+  }
+
   DECLARE_TRACE();
   DECLARE_VIRTUAL_TRACE_WRAPPERS();
 
  private:
   ModuleScript(ScriptModule record,
                const KURL& base_url,
                const String& nonce,
                ParserDisposition parser_state,
                WebURLRequest::FetchCredentialsMode credentials_mode)
       : record_(record),
@@ skipping 34 matching lines @@
   // https://html.spec.whatwg.org/multipage/webappapis.html#concept-module-script-parser
   const ParserDisposition parser_state_;
 
   // https://html.spec.whatwg.org/multipage/webappapis.html#concept-module-script-credentials-mode
   const WebURLRequest::FetchCredentialsMode credentials_mode_;
 };
 
 }  // namespace blink
 
 #endif