[Sync] Have SBH tell SyncManager which types to purge

chrome/browser/sync/test_profile_sync_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/sync/test_profile_sync_service.h"
 
 #include "chrome/browser/signin/signin_manager.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/sync/glue/data_type_controller.h"
 #include "chrome/browser/sync/glue/sync_backend_host.h"
@@ skipping 86 matching lines @@
   // If we had failed the initial download, complete initialization now.
   if (!initial_download_closure_.is_null()) {
     initial_download_closure_.Run();
     initial_download_closure_.Reset();
   }
 }
 
 void SyncBackendHostForProfileSyncTest::RequestConfigureSyncer(
     syncer::ConfigureReason reason,
     syncer::ModelTypeSet to_download,
+    syncer::ModelTypeSet to_purge,
     syncer::ModelTypeSet to_journal,
     syncer::ModelTypeSet to_unapply,
     syncer::ModelTypeSet to_ignore,
     const syncer::ModelSafeRoutingInfo& routing_info,
     const base::Callback<void(syncer::ModelTypeSet,
                               syncer::ModelTypeSet)>& ready_task,
     const base::Closure& retry_callback) {
   syncer::ModelTypeSet failed_configuration_types;
   if (fail_initial_download_)
     failed_configuration_types = to_download;
@@ skipping 177 matching lines @@
       profile(),
       sync_prefs_.AsWeakPtr(),
       invalidator_storage_.AsWeakPtr(),
       id_factory_,
       callback_,
       set_initial_sync_ended_on_init_,
       synchronous_backend_initialization_,
       fail_initial_download_,
       storage_option_));
 }