[sync] Fix IsSyncConfirmationNeeded crash when local backend is enabled

components/browser_sync/profile_sync_service_startup_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 "components/browser_sync/profile_sync_service.h"
 
 #include "base/files/file_util.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 177 matching lines @@
   // Then start things up.
   EXPECT_CALL(*data_type_manager, Configure(_, _)).Times(1);
   EXPECT_CALL(*data_type_manager, state())
       .WillOnce(Return(DataTypeManager::CONFIGURED))
       .WillOnce(Return(DataTypeManager::CONFIGURED));
   EXPECT_CALL(*data_type_manager, Stop()).Times(1);
   EXPECT_CALL(observer_, OnStateChanged(_)).Times(AnyNumber());
 
   auto sync_blocker = sync_service_->GetSetupInProgressHandle();
 
+  // Confirmation isn't needed before sign in occurs.
+  EXPECT_FALSE(sync_service_->IsSyncConfirmationNeeded());
+
   // Simulate successful signin as test_user.
   std::string account_id = SimulateTestUserSignin(sync_service_.get());
   ON_CALL(*data_type_manager, IsNigoriEnabled()).WillByDefault(Return(true));
   // Create some tokens in the token service.
   IssueTestTokens(account_id);
 
   // Simulate the UI telling sync it has finished setting up.
   sync_blocker.reset();
   sync_service_->SetFirstSetupComplete();
   EXPECT_TRUE(sync_service_->IsSyncActive());
@@ skipping 266 matching lines @@
   EXPECT_CALL(observer_, OnStateChanged(_)).Times(AnyNumber());
   sync_service_->Initialize();
 
   auto sync_blocker = sync_service_->GetSetupInProgressHandle();
   IssueTestTokens(account_id);
   sync_blocker.reset();
   EXPECT_FALSE(sync_service_->IsSyncActive());
 }
 
 }  // namespace browser_sync