Convert the utility process JSON parser into a Mojo service.

chrome/utility/safe_json_parser_handler.h

-// Copyright 2015 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 CHROME_UTILITY_SAFE_JSON_PARSER_HANDLER_H_
-#define CHROME_UTILITY_SAFE_JSON_PARSER_HANDLER_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "chrome/utility/utility_message_handler.h"
-
-namespace safe_json {
-class SafeJsonParserMessageFilter;
-}  // namespace safe_json
-
-// Dispatches IPCs for out of process JSON parsing. This is an adapter class
-// that delegates to safe_json::SafeJsonParserMessageFilter, since the
-// SafeJsonParserMessageFilter in //components/safe_json can't directly
-// depend on //chrome/utility.
-class SafeJsonParserHandler : public UtilityMessageHandler {
- public:
-  SafeJsonParserHandler();
-  ~SafeJsonParserHandler() override;
-
-  // UtilityMessageHandler
-  bool OnMessageReceived(const IPC::Message& message) override;
-
- private:
-  std::unique_ptr<safe_json::SafeJsonParserMessageFilter> handler_;
-
-  DISALLOW_COPY_AND_ASSIGN(SafeJsonParserHandler);
-};
-
-#endif  // CHROME_UTILITY_SAFE_JSON_PARSER_HANDLER_H_