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

net/server/http_server.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/server/http_server.h"
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "base/string_util.h"
@@ skipping 44 matching lines @@
   connection->Send(status_code, data, content_type);
 }
 
 void HttpServer::Send200(int connection_id,
                          const std::string& data,
                          const std::string& content_type) {
   Send(connection_id, HTTP_OK, data, content_type);
 }
 
 void HttpServer::Send404(int connection_id) {
-  Send(connection_id, HTTP_NOT_FOUND, "", "text/html");
+  Send(connection_id, HTTP_NOT_FOUND, std::string(), "text/html");
 }
 
 void HttpServer::Send500(int connection_id, const std::string& message) {
   Send(connection_id, HTTP_INTERNAL_SERVER_ERROR, message, "text/html");
 }
 
 void HttpServer::Close(int connection_id) {
   HttpConnection* connection = FindConnection(connection_id);
   if (connection == NULL)
     return;
@@ skipping 215 matching lines @@
 }
 
 HttpConnection* HttpServer::FindConnection(StreamListenSocket* socket) {
   SocketToConnectionMap::iterator it = socket_to_connection_.find(socket);
   if (it == socket_to_connection_.end())
     return NULL;
   return it->second;
 }
 
 }  // namespace net