Convert //chrome from scoped_ptr to std::unique_ptr

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 "base/memory/scoped_ptr.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:
-  scoped_ptr<safe_json::SafeJsonParserMessageFilter> handler_;
+  std::unique_ptr<safe_json::SafeJsonParserMessageFilter> handler_;
 
   DISALLOW_COPY_AND_ASSIGN(SafeJsonParserHandler);
 };
 
 #endif  // CHROME_UTILITY_SAFE_JSON_PARSER_HANDLER_H_