SPDY: Fix Alternate-Protocol.

net/base/host_port_pair.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 "net/base/host_port_pair.h"
 #include "base/string_util.h"
 
 namespace net {
 
+HostPortPair::HostPortPair() : port(0) {}
+HostPortPair::HostPortPair(const std::string& in_host, uint16 in_port)
+    : host(in_host), port(in_port) {}
+
 std::string HostPortPair::ToString() const {
-  return StringPrintf("[Host: %s, Port: %u]", host.c_str(), port);
+  // Check to see if the host is an IPv6 address.  If so, added brackets.
+  if (host.find(':') != std::string::npos)
+    return StringPrintf("[%s]:%u", host.c_str(), port);
+  return StringPrintf("%s:%u", host.c_str(), port);
 }
 
 }  // namespace net