Avoid initial NetworkChangeNotifier OnDNSChanged() signal on Android

chrome/browser/net/dns_probe_service.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/net/dns_probe_service.h"
 
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "net/base/ip_endpoint.h"
@@ skipping 102 matching lines @@
       // Do nothing; probe is already running, and will call the callback.
       break;
   }
 }
 
 void DnsProbeService::OnDNSChanged() {
   ClearCachedResult();
   SetSystemClientToCurrentConfig();
 }
 
+void DnsProbeService::OnInitialDNSConfigRead() {
+  OnDNSChanged();
+}
+
 void DnsProbeService::SetSystemClientForTesting(
     scoped_ptr<DnsClient> system_client) {
   system_runner_.SetClient(system_client.Pass());
 }
 
 void DnsProbeService::SetPublicClientForTesting(
     scoped_ptr<DnsClient> public_client) {
   public_runner_.SetClient(public_client.Pass());
 }
 
@@ skipping 83 matching lines @@
 bool DnsProbeService::CachedResultIsExpired() const {
   if (state_ != STATE_RESULT_CACHED)
     return false;
 
   const base::TimeDelta kMaxResultAge =
       base::TimeDelta::FromMilliseconds(kMaxResultAgeMs);
   return base::Time::Now() - probe_start_time_ > kMaxResultAge;
 }
 
 }  // namespace chrome_browser_net