Add shutdown notification and service refs to SyncServiceObserver.

components/ntp_snippets/sessions/tab_delegate_sync_adapter_unittest.cc

 // Copyright 2016 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 "components/ntp_snippets/sessions/tab_delegate_sync_adapter.h"
 
 #include <string>
 
 #include "base/macros.h"
 #include "components/sync/driver/fake_sync_service.h"
@@ skipping 96 matching lines @@
   observer()->OnSyncCycleCompleted();
   EXPECT_EQ(3, CallbackCount());
   observer()->OnSyncCycleCompleted();
   EXPECT_EQ(3, CallbackCount());
 }
 
 // No callback should be invoked from OnSyncConfigurationCompleted.
 TEST_F(TabDelegateSyncAdapterTest, OnSyncConfigurationCompleted) {
   ASSERT_EQ(0, CallbackCount());
 
-  observer()->OnSyncConfigurationCompleted();
+  observer()->OnSyncConfigurationCompleted(&service_);
   EXPECT_EQ(0, CallbackCount());
 
   SetHasOpenTabs(true);
-  observer()->OnSyncConfigurationCompleted();
+  observer()->OnSyncConfigurationCompleted(&service_);
   EXPECT_EQ(0, CallbackCount());
 }
 
 // OnForeignSessionUpdated should always trigger a callback.
 TEST_F(TabDelegateSyncAdapterTest, OnForeignSessionUpdated) {
   ASSERT_EQ(0, CallbackCount());
   observer()->OnForeignSessionUpdated();
   EXPECT_EQ(1, CallbackCount());
   observer()->OnForeignSessionUpdated();
   EXPECT_EQ(2, CallbackCount());
@@ skipping 11 matching lines @@
   SetHasOpenTabs(true);
   observer()->OnForeignSessionUpdated();
   EXPECT_EQ(1, CallbackCount());
 
   observer()->OnStateChanged();
   EXPECT_EQ(1, CallbackCount());
 }
 
 }  // namespace
 }  // namespace ntp_snippets