Rewrite std::string("") to std::string(), Linux edition.

net/tools/flip_server/acceptor_thread.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.
 
 #include "net/tools/flip_server/acceptor_thread.h"
 
 #include <netinet/in.h>
 #include <netinet/tcp.h>  // For TCP_NODELAY
 #include <sys/socket.h>
 #include <sys/types.h>
@@ skipping 87 matching lines @@
   if (server_connection == NULL) {
     VLOG(1) << ACCEPTOR_CLIENT_IDENT << "Acceptor: Closing fd " << server_fd;
     close(server_fd);
     return;
   }
   std::string remote_ip = inet_ntoa(remote_addr->sin_addr);
   server_connection->InitSMConnection(this,
                                       NULL,
                                       &epoll_server_,
                                       server_fd,
-                                      "", "", remote_ip,
+                                      std::string(),
+                                      std::string(),
+                                      remote_ip,
                                       use_ssl_);
   if (server_connection->initialized())
     active_server_connections_.push_back(server_connection);
 }
 
 void SMAcceptorThread::AcceptFromListenFD() {
   if (acceptor_->accepts_per_wake_ > 0) {
     for (int i = 0; i < acceptor_->accepts_per_wake_; ++i) {
       struct sockaddr address;
       socklen_t socklen = sizeof(address);
@@ skipping 82 matching lines @@
 }
 
 void SMAcceptorThread::SMConnectionDone(SMConnection* sc) {
   VLOG(1) << ACCEPTOR_CLIENT_IDENT << "Done with connection.";
   tmp_unused_server_connections_.push_back(sc);
 }
 
 }  // namespace net