[modules] Store Module metadata in per-Context EmbedderData

src/d8.h

 // Copyright 2012 the V8 project 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 V8_D8_H_
 #define V8_D8_H_
 
-#include <map>
 #include <string>
 
 #include "src/allocation.h"
 #include "src/base/hashmap.h"
 #include "src/base/platform/time.h"
 #include "src/list.h"
 
 #include "src/base/once.h"
 
 
@@ skipping 429 matching lines @@
 
   static void WriteIgnitionDispatchCountersFile(v8::Isolate* isolate);
   static Counter* GetCounter(const char* name, bool is_histogram);
   static Local<String> Stringify(Isolate* isolate, Local<Value> value);
   static void Initialize(Isolate* isolate);
   static void RunShell(Isolate* isolate);
   static bool SetOptions(int argc, char* argv[]);
   static Local<ObjectTemplate> CreateGlobalTemplate(Isolate* isolate);
   static MaybeLocal<Context> CreateRealm(
       const v8::FunctionCallbackInfo<v8::Value>& args);
-  static MaybeLocal<Module> FetchModuleTree(
-      Isolate* isolate, const std::string& file_name,
-      std::map<std::string, Global<Module>>* module_map);
+  static MaybeLocal<Module> FetchModuleTree(v8::Local<v8::Context> context,
+                                            const std::string& file_name);
 };
 
 
 }  // namespace v8
 
 
 #endif  // V8_D8_H_