Revert "Add new InternetAddress class with a static lookup function (including IPv6 results)"

runtime/bin/vmstats_impl.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/vmstats_impl.h"
 
 #include "bin/file.h"
 #include "bin/log.h"
 #include "bin/platform.h"
 #include "bin/resources.h"
@@ skipping 37 matching lines @@
   ASSERT(instance_monitor_ != NULL);
   Socket::Initialize();
 
   if (root_dir != NULL) {
     instance_->root_directory_ = root_dir;
   }
 
   // TODO(tball): allow host to be specified.
   char* host = const_cast<char*>(DEFAULT_HOST);
   OSError* os_error;
-  SocketAddresses* addresses = Socket::LookupAddress(host, -1, &os_error);
-  if (addresses == NULL) {
+  const char* host_ip = Socket::LookupIPv4Address(host, &os_error);
+  if (host_ip == NULL) {
     Log::PrintErr("Failed IP lookup of VmStats host %s: %s\n",
                   host, os_error->message());
     return;
   }
+
   const intptr_t BACKLOG = 128;  // Default value from HttpServer.dart
-  int64_t address = ServerSocket::CreateBindListen(
-      addresses->GetAt(0)->addr(), port, BACKLOG);
+  int64_t address = ServerSocket::CreateBindListen(host_ip, port, BACKLOG);
   if (address < 0) {
     Log::PrintErr("Failed binding VmStats socket: %s:%d\n", host, port);
     return;
   }
   instance_->bind_address_ = address;
   Log::Print("VmStats URL: http://%s:%"Pd"/\n", host, Socket::GetPort(address));
 
   MonitorLocker ml(instance_monitor_);
   instance_->running_ = true;
   int err = dart::Thread::Start(WebServer, address);
@@ skipping 388 matching lines @@
   VmStatusPlugin* plugin = instance_->registered_plugin_list_;
   while (plugin != NULL) {
     char* result = (plugin->callback())(request);
     if (result != NULL) {
       return result;
     }
     plugin = plugin->next();
   }
   return NULL;
 }