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

net/tools/flip_server/spdy_interface.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/spdy_interface.h"
 
 #include <algorithm>
 #include <string>
 
 #include "net/spdy/spdy_framer.h"
@@ skipping 94 matching lines @@
             << server_idx;
   } else {
     server_idx = unused_server_interface_list.back();
     unused_server_interface_list.pop_back();
     sm_http_interface = server_interface_list.at(server_idx);
     VLOG(2) << ACCEPTOR_CLIENT_IDENT << "SpdySM: Reusing connection on "
             << "index: " << server_idx;
   }
 
   sm_http_interface->InitSMInterface(this, server_idx);
-  sm_http_interface->InitSMConnection(NULL, sm_http_interface,
-                                      epoll_server_, -1,
-                                      server_ip, server_port, "", false);
+  sm_http_interface->InitSMConnection(NULL,
+                                      sm_http_interface,
+                                      epoll_server_,
+                                      -1,
+                                      server_ip,
+                                      server_port,
+                                      std::string(),
+                                      false);
 
   return sm_http_interface;
 }
 
 int SpdySM::SpdyHandleNewStream(
     SpdyStreamId stream_id,
     SpdyPriority priority,
     const SpdyHeaderBlock& headers,
     std::string &http_data,
     bool* is_https_scheme) {
@@ skipping 427 matching lines @@
                   mci->file_data->body.data() + mci->body_bytes_consumed,
                   num_to_write, 0, should_compress);
     VLOG(2) << ACCEPTOR_CLIENT_IDENT << "SpdySM: GetOutput SendDataFrame["
             << mci->stream_id << "]: " << num_to_write;
     mci->body_bytes_consumed += num_to_write;
     mci->bytes_sent += num_to_write;
   }
 }
 
 }  // namespace net