Enable the network connectivity tests. Changes in CL 10299300 would fix

chrome/browser/net/network_stats.cc

 // Copyright 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/net/network_stats.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/field_trial.h"
@@ skipping 867 matching lines @@
       // Enable the connectivity testing for 50% of the users in canary channel.
       probability_per_group = kDivisor / 2;
     } else if (channel == chrome::VersionInfo::CHANNEL_DEV) {
       // Enable the connectivity testing for 10% of the users in dev channel.
       probability_per_group = kDivisor / 10;
     } else if (channel == chrome::VersionInfo::CHANNEL_BETA) {
       // Enable the connectivity testing for 1% of the users in beta channel.
       probability_per_group = kDivisor / 100;
     }
 
-    // TODO(rtenneti): Enable the experiment after fixing
-    // issue http://crbug.com/273917.
-    probability_per_group = 0;
-
     // After July 31, 2014 builds, it will always be in default group
     // (disable_network_stats).
     trial = base::FieldTrialList::FactoryGetFieldTrial(
         "NetworkConnectivity", kDivisor, "disable_network_stats",
         2014, 7, 31, base::FieldTrial::SESSION_RANDOMIZED, NULL);
 
     // Add option to collect_stats for NetworkConnectivity.
     int collect_stats_group =
         trial->AppendGroup("collect_stats", probability_per_group);
     if (trial->group() == collect_stats_group)
@@ skipping 47 matching lines @@
   udp_stats_client->Start(host_resolver,
                           server_address,
                           histogram_port,
                           has_proxy_server,
                           kProbePacketBytes[probe_choice],
                           bytes_for_packet_size_test,
                           net::CompletionCallback());
 }
 
 }  // namespace chrome_browser_net