[net] Add AsyncDNS.TTL histogram.

chrome/browser/ui/webui/net_internals/net_internals_ui_browsertest.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 "chrome/browser/ui/webui/net_internals/net_internals_ui_browsertest.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
@@ skipping 53 matching lines @@
                                          0,
                                          &address_list,
                                          NULL);
     ASSERT_EQ(net::OK, rv);
   } else {
     ASSERT_TRUE(ip_literal.empty());
   }
 
   // Add entry to the cache.
   cache->Set(net::HostCache::Key(hostname, net::ADDRESS_FAMILY_UNSPECIFIED, 0),
-             net_error,
-             address_list,
+             net::HostCache::Entry(net_error, address_list),
              base::TimeTicks::Now(),
              ttl);
 }
 
 // Called on IO thread.  Adds an entry to the list of known HTTP pipelining
 // hosts.
 void AddDummyHttpPipelineFeedbackOnIOThread(
     net::URLRequestContextGetter* context_getter,
     const std::string& hostname,
     int port,
@@ skipping 271 matching lines @@
   GURL url_loader = test_server()->GetURL(replacement_path);
   return url_loader;
 }
 
 bool NetInternalsTest::StartTestServer() {
   if (test_server_started_)
     return true;
   test_server_started_ = test_server()->Start();
   return test_server_started_;
 }