[inspector] change implementation file extension from cpp to cc

src/inspector/RemoteObjectId.h

-// Copyright 2015 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_INSPECTOR_REMOTEOBJECTID_H_
-#define V8_INSPECTOR_REMOTEOBJECTID_H_
-
-#include "src/inspector/protocol/Forward.h"
-
-namespace v8_inspector {
-
-using protocol::ErrorString;
-
-class RemoteObjectIdBase {
- public:
-  int contextId() const { return m_injectedScriptId; }
-
- protected:
-  RemoteObjectIdBase();
-  ~RemoteObjectIdBase() {}
-
-  std::unique_ptr<protocol::DictionaryValue> parseInjectedScriptId(
-      const String16&);
-
-  int m_injectedScriptId;
-};
-
-class RemoteObjectId final : public RemoteObjectIdBase {
- public:
-  static std::unique_ptr<RemoteObjectId> parse(ErrorString*, const String16&);
-  ~RemoteObjectId() {}
-  int id() const { return m_id; }
-
- private:
-  RemoteObjectId();
-
-  int m_id;
-};
-
-class RemoteCallFrameId final : public RemoteObjectIdBase {
- public:
-  static std::unique_ptr<RemoteCallFrameId> parse(ErrorString*,
-                                                  const String16&);
-  ~RemoteCallFrameId() {}
-
-  int frameOrdinal() const { return m_frameOrdinal; }
-
-  static String16 serialize(int injectedScriptId, int frameOrdinal);
-
- private:
-  RemoteCallFrameId();
-
-  int m_frameOrdinal;
-};
-
-}  // namespace v8_inspector
-
-#endif  // V8_INSPECTOR_REMOTEOBJECTID_H_