[Sync] Remove backend unrecoverable error handler

sync/internal_api/sync_manager_impl.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/internal_api/sync_manager_impl.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/bind.h"
@@ skipping 224 matching lines @@
 
   change_delegate_ = args->change_delegate;
 
   AddObserver(&js_sync_manager_observer_);
   SetJsEventHandler(args->event_handler);
 
   AddObserver(&debug_info_event_listener_);
 
   database_path_ = args->database_location.Append(
       syncable::Directory::kSyncDatabaseFilename);
-  unrecoverable_error_handler_ = args->unrecoverable_error_handler.Pass();
   report_unrecoverable_error_function_ =
       args->report_unrecoverable_error_function;
 
   allstatus_.SetHasKeystoreKey(
       !args->restored_keystore_key_for_bootstrapping.empty());
   sync_encryption_handler_.reset(new SyncEncryptionHandlerImpl(
       &share_, args->encryptor, args->restored_key_for_bootstrapping,
       args->restored_keystore_key_for_bootstrapping, args->clear_data_option));
   sync_encryption_handler_->AddObserver(this);
   sync_encryption_handler_->AddObserver(&debug_info_event_listener_);
   sync_encryption_handler_->AddObserver(&js_sync_encryption_handler_observer_);
 
   base::FilePath absolute_db_path = database_path_;
   DCHECK(absolute_db_path.IsAbsolute());
 
   scoped_ptr<syncable::DirectoryBackingStore> backing_store =
       args->internal_components_factory->BuildDirectoryBackingStore(
           InternalComponentsFactory::STORAGE_ON_DISK,
           args->credentials.email, absolute_db_path).Pass();
 
   DCHECK(backing_store.get());
   share_.directory.reset(
       new syncable::Directory(
           backing_store.release(),
-          unrecoverable_error_handler_.get(),
+          args->unrecoverable_error_handler,
           report_unrecoverable_error_function_,
           sync_encryption_handler_.get(),
           sync_encryption_handler_->GetCryptographerUnsafe()));
   share_.sync_credentials = args->credentials;
 
   // UserShare is accessible to a lot of code that doesn't need access to the
   // sync token so clear sync_token from the UserShare.
   share_.sync_credentials.sync_token = "";
 
   const std::string& username = args->credentials.email;
@@ skipping 760 matching lines @@
 }
 
 void SyncManagerImpl::ClearServerData(const ClearServerDataCallback& callback) {
   DCHECK(thread_checker_.CalledOnValidThread());
   scheduler_->Start(SyncScheduler::CLEAR_SERVER_DATA_MODE, base::Time());
   ClearParams params(callback);
   scheduler_->ScheduleClearServerData(params);
 }
 
 }  // namespace syncer