Convert JsonWriter::Write to taking a const ref for the in-param

net/tools/get_server_time/get_server_time.cc

 // Copyright (c) 2012 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.
 
 // This is a small utility that snarfs the server time from the
 // response headers of an http/https HEAD request and compares it to
 // the local time.
 //
 // TODO(akalin): Also snarf the server time from the TLS handshake, if
 // any (http://crbug.com/146090).
@@ skipping 104 matching lines @@
 
     const char* const source_type =
         net::NetLog::SourceTypeToString(entry.source().type);
     const char* const event_type =
         net::NetLog::EventTypeToString(entry.type());
     const char* const event_phase =
         net::NetLog::EventPhaseToString(entry.phase());
     scoped_ptr<base::Value> params(entry.ParametersToValue());
     std::string params_str;
     if (params.get()) {
-      base::JSONWriter::Write(params.get(), &params_str);
+      base::JSONWriter::Write(*params, &params_str);
       params_str.insert(0, ": ");
     }
 
     VLOG(1) << source_type << "(" << entry.source().id << "): "
             << event_type << ": " << event_phase << params_str;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PrintingLogObserver);
 };
@@ skipping 181 matching lines @@
                &skew, &skew_uncertainty);
 
   std::printf(
       "An estimate for the local clock skew is %.2f ms with "
       "uncertainty %.2f ms\n",
       skew.InMillisecondsF(),
       skew_uncertainty.InMillisecondsF());
 
   return EXIT_SUCCESS;
 }