Introduce blink::Script

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

 // 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.
 
 #include "core/dom/ModuleScript.h"
 
 namespace blink {
 
 void ModuleScript::setInstantiationError(v8::Isolate* isolate,
                                          v8::Local<v8::Value> error) {
   DCHECK_EQ(m_instantiationState, ModuleInstantiationState::Uninstantiated);
   m_instantiationState = ModuleInstantiationState::Errored;
 
   DCHECK(!error.IsEmpty());
   m_instantiationError.set(isolate, error);
 }
 
 void ModuleScript::setInstantiationSuccess() {
   DCHECK_EQ(m_instantiationState, ModuleInstantiationState::Uninstantiated);
   m_instantiationState = ModuleInstantiationState::Instantiated;
 }
 
-DEFINE_TRACE(ModuleScript) {}
+DEFINE_TRACE(ModuleScript) {
+  Script::trace(visitor);
+}
 DEFINE_TRACE_WRAPPERS(ModuleScript) {
   visitor->traceWrappers(m_instantiationError);
 }
 
+bool ModuleScript::isEmpty() const {
+  return false;
+}
+
+bool ModuleScript::checkMIMETypeBeforeRunScript(Document* contextDocument,
+                                                const SecurityOrigin*) const {
+  // We don't check MIME type here because we check the MIME type in
+  // ModuleScriptLoader::wasModuleLoadSuccessful().
+  return true;
+}
+
+void ModuleScript::runScript(LocalFrame* frame, const SecurityOrigin*) const {
+  // TODO(hiroshige): Implement this once Modulator::executeModule() is landed.
+  NOTREACHED();
+}
+
+String ModuleScript::inlineSourceTextForCSP() const {
+  // Currently we don't support inline module scripts.
+  // TODO(hiroshige): Implement this.
+  NOTREACHED();
+  return String();
+}
+
 }  // namespace blink