[Sync] Add support for performing a GetKey on startup.

sync/sessions/sync_session_unittest.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 "sync/sessions/sync_session.h"
 
 #include "base/compiler_specific.h"
 #include "base/location.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop.h"
@@ skipping 33 matching lines @@
     ModelSafeRoutingInfo routing_info;
     std::vector<ModelSafeWorker*> workers;
 
     GetModelSafeRoutingInfo(&routing_info);
     GetWorkers(&workers);
 
     context_.reset(
         new SyncSessionContext(
             NULL, NULL, routing_info, workers, &extensions_activity_monitor_,
             throttled_data_type_tracker_.get(),
-            std::vector<SyncEngineEventListener*>(), NULL, NULL));
+            std::vector<SyncEngineEventListener*>(), NULL, NULL,
+            true  /* enable keystore encryption */));
     routes_.clear();
     routes_[syncer::BOOKMARKS] = GROUP_UI;
     routes_[syncer::AUTOFILL] = GROUP_DB;
     scoped_refptr<ModelSafeWorker> passive_worker(
         new FakeModelWorker(GROUP_PASSIVE));
     scoped_refptr<ModelSafeWorker> ui_worker(
         new FakeModelWorker(GROUP_UI));
     scoped_refptr<ModelSafeWorker> db_worker(
         new FakeModelWorker(GROUP_DB));
     workers_.clear();
@@ skipping 426 matching lines @@
 
   ASSERT_EQ(3U, types_with_payloads.size());
   EXPECT_EQ(types_with_payloads[syncer::BOOKMARKS], payload);
   EXPECT_EQ(types_with_payloads[syncer::PASSWORDS], payload);
   EXPECT_EQ(types_with_payloads[syncer::AUTOFILL], payload);
 }
 
 }  // namespace
 }  // namespace sessions
 }  // namespace syncer