sync: Add --enable-sync-sessions-v2 and necessary plumbing to use SessionsSyncManager.

chrome/browser/ui/webui/ntp/android/promo_handler.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/ntp/android/promo_handler.h"
 
 #include "base/logging.h"
 #include "base/memory/ref_counted_memory.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/android/intent_helper.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/signin/signin_manager.h"
-#include "chrome/browser/sync/glue/session_model_associator.h"
 #include "chrome/browser/sync/glue/synced_session.h"
+#include "chrome/browser/sync/open_tabs_ui_delegate.h"
 #include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/browser/web_resource/notification_promo.h"
 #include "chrome/browser/web_resource/notification_promo_mobile_ntp.h"
 #include "chrome/browser/web_resource/promo_resource_service.h"
 #include "chrome/common/pref_names.h"
 #include "components/user_prefs/pref_registry_syncable.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 274 matching lines @@
   if (!prefs || prefs->GetBoolean(prefs::kNtpPromoDesktopSessionFound))
     return;
 
   // Check if the sync is currently active.
   ProfileSyncService* service =
       ProfileSyncServiceFactory::GetInstance()->GetForProfile(profile);
   if (!service || !service->ShouldPushChanges())
     return;
 
   // Check if the sync has any open sessions.
-  browser_sync::SessionModelAssociator* associator =
-      service->GetSessionModelAssociator();
-  if (!associator)
+  browser_sync::OpenTabsUIDelegate* open_tabs =
+      service->GetOpenTabsUIDelegate();
+  if (!open_tabs)
     return;
 
   // Let's see if there are no desktop sessions.
   std::vector<const browser_sync::SyncedSession*> sessions;
   ListValue session_list;
-  if (!associator->GetAllForeignSessions(&sessions))
+  if (!open_tabs->GetAllForeignSessions(&sessions))
     return;
 
   for (size_t i = 0; i < sessions.size(); ++i) {
     const browser_sync::SyncedSession::DeviceType device_type =
         sessions[i]->device_type;
     if (device_type == browser_sync::SyncedSession::TYPE_WIN ||
         device_type == browser_sync::SyncedSession::TYPE_MACOSX ||
         device_type == browser_sync::SyncedSession::TYPE_LINUX) {
       // Found a desktop session: write out the pref.
       prefs->SetBoolean(prefs::kNtpPromoDesktopSessionFound, true);
       return;
     }
   }
 }