Brushed up listen socket:

net/socket/tcp_pinger_unittest.cc

 // Copyright (c) 2010 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 "base/ref_counted.h"
 #include "base/trace_event.h"
 #include "net/base/address_list.h"
 #include "net/base/host_resolver.h"
 #include "net/base/listen_socket.h"
 #include "net/base/net_errors.h"
@@ skipping 10 matching lines @@
   }
 
   // Implement ListenSocketDelegate methods
   virtual void DidAccept(ListenSocket* server, ListenSocket* connection) {
     // This callback doesn't seem to happen
     // right away, so this handler may not be called at all
     // during connect-only tests.
     LOG(INFO) << "TCPPinger accepted connection";
     connected_sock_ = connection;
   }
-  virtual void DidRead(ListenSocket*, const std::string& s) {
+  virtual void DidRead(ListenSocket*, const char* str, int len) {
     // Not really needed yet, as TCPPinger doesn't support Read
     connected_sock_->Send(std::string("HTTP/1.1 404 Not Found"), true);
     connected_sock_ = NULL;
   }
   virtual void DidClose(ListenSocket* sock) {}
 
   // Testcase hooks
   virtual void SetUp();
 
  protected:
@@ skipping 42 matching lines @@
   listen_sock_ = NULL;
 
   net::HostResolver::RequestInfo info("localhost", listen_port_);
   int rv = resolver->Resolve(info, &addr, NULL, NULL, net::BoundNetLog());
   EXPECT_EQ(rv, net::OK);
 
   net::TCPPinger pinger(addr);
   rv = pinger.Ping(base::TimeDelta::FromMilliseconds(100), 1);
   EXPECT_NE(rv, net::OK);
 }