[sessions] Properly namespace recently-componentized TabRestore code

chrome/browser/browsing_data/browsing_data_remover.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/browsing_data/browsing_data_remover.h"
 
 #include <map>
 #include <set>
 #include <string>
 
@@ skipping 345 matching lines @@
       prerender_manager->ClearData(
           prerender::PrerenderManager::CLEAR_PRERENDER_CONTENTS |
           prerender::PrerenderManager::CLEAR_PRERENDER_HISTORY);
     }
 
     // If the caller is removing history for all hosts, then clear ancillary
     // historical information.
     if (remove_url.is_empty()) {
       // We also delete the list of recently closed tabs. Since these expire,
       // they can't be more than a day old, so we can simply clear them all.
-      TabRestoreService* tab_service =
+      sessions::TabRestoreService* tab_service =
           TabRestoreServiceFactory::GetForProfile(profile_);
       if (tab_service) {
         tab_service->ClearEntries();
         tab_service->DeleteLastSession();
       }
 
 #if defined(ENABLE_SESSION_SERVICE)
       // We also delete the last session when we delete the history.
       SessionService* session_service =
           SessionServiceFactory::GetForProfile(profile_);
@@ skipping 780 matching lines @@
   waiting_for_clear_domain_reliability_monitor_ = false;
   NotifyAndDeleteIfDone();
 }
 
 // static
 BrowsingDataRemover::CallbackSubscription
     BrowsingDataRemover::RegisterOnBrowsingDataRemovedCallback(
         const BrowsingDataRemover::Callback& callback) {
   return GetOnBrowsingDataRemovedCallbacks()->Add(callback);
 }