sync: Use base::MessageLoop.

sync/tools/testserver/run_sync_testserver.cc

 // Copyright 2013 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.
 
 #include <stdio.h>
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
@@ skipping 52 matching lines @@
     if (!base::StringToInt(port_str, &port_int)) {
       return false;
     }
   }
   *port = static_cast<uint16>(port_int);
   return true;
 }
 
 int main(int argc, const char* argv[]) {
   base::AtExitManager at_exit_manager;
-  MessageLoopForIO message_loop;
+  base::MessageLoopForIO message_loop;
 
   // Process command line
   CommandLine::Init(argc, argv);
   CommandLine* command_line = CommandLine::ForCurrentProcess();
 
   if (!logging::InitLogging(
           FILE_PATH_LITERAL("sync_testserver.log"),
           logging::LOG_TO_BOTH_FILE_AND_SYSTEM_DEBUG_LOG,
           logging::LOCK_LOG_FILE,
           logging::APPEND_TO_OLD_LOG_FILE,
@@ skipping 29 matching lines @@
     printf("Error: failed to start python sync test server. Exiting.\n");
     return -1;
   }
 
   printf("Python sync test server running at %s (type ctrl+c to exit)\n",
          test_server->host_port_pair().ToString().c_str());
 
   message_loop.Run();
   return 0;
 }