build: add enable_remote_module build flag (#19821)

shell/common/api/remote/remote_object_freer.h

@@ -0,0 +1,45 @@
+// Copyright (c) 2016 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef SHELL_COMMON_API_REMOTE_REMOTE_OBJECT_FREER_H_
+#define SHELL_COMMON_API_REMOTE_REMOTE_OBJECT_FREER_H_
+
+#include <map>
+#include <string>
+
+#include "shell/common/api/remote/object_life_monitor.h"
+
+namespace electron {
+
+class RemoteObjectFreer : public ObjectLifeMonitor {
+ public:
+  static void BindTo(v8::Isolate* isolate,
+                     v8::Local<v8::Object> target,
+                     const std::string& context_id,
+                     int object_id);
+  static void AddRef(const std::string& context_id, int object_id);
+
+ protected:
+  RemoteObjectFreer(v8::Isolate* isolate,
+                    v8::Local<v8::Object> target,
+                    const std::string& context_id,
+                    int object_id);
+  ~RemoteObjectFreer() override;
+
+  void RunDestructor() override;
+
+  // { context_id => { object_id => ref_count }}
+  static std::map<std::string, std::map<int, int>> ref_mapper_;
+
+ private:
+  std::string context_id_;
+  int object_id_;
+  int routing_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(RemoteObjectFreer);
+};
+
+}  // namespace electron
+
+#endif  // SHELL_COMMON_API_REMOTE_REMOTE_OBJECT_FREER_H_