Introduce ERR_NETWORK_CHANGED and allow URLFetcher to automatically retry on that error.

chrome/browser/google/google_url_tracker.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/google/google_url_tracker.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/string_util.h"
 #include "chrome/browser/google/google_url_tracker_factory.h"
@@ skipping 311 matching lines @@
                                          net::URLFetcher::GET, this));
   ++fetcher_id_;
   // We don't want this fetch to set new entries in the cache or cookies, lest
   // we alarm the user.
   fetcher_->SetLoadFlags(net::LOAD_DISABLE_CACHE |
                          net::LOAD_DO_NOT_SAVE_COOKIES);
   fetcher_->SetRequestContext(profile_->GetRequestContext());
 
   // Configure to max_retries at most kMaxRetries times for 5xx errors.
   static const int kMaxRetries = 5;
-  fetcher_->SetMaxRetries(kMaxRetries);
+  fetcher_->SetMaxRetriesOn5xx(kMaxRetries);
 
   fetcher_->Start();
 }
 
 void GoogleURLTracker::SearchCommitted() {
   if (need_to_prompt_) {
     search_committed_ = true;
     // These notifications will fire a bit later in the same call chain we're
     // currently in.
     if (!registrar_.IsRegistered(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
@@ skipping 180 matching lines @@
   }
   if (registrar_.IsRegistered(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
       content::NotificationService::AllBrowserContextsAndSources())) {
     DCHECK(!search_committed_);
     registrar_.Remove(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
         content::NotificationService::AllBrowserContextsAndSources());
     registrar_.Remove(this, chrome::NOTIFICATION_INSTANT_COMMITTED,
         content::NotificationService::AllBrowserContextsAndSources());
   }
 }