[Sync] Remove backend unrecoverable error handler

chrome/browser/sync/glue/sync_backend_host_impl.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_SYNC_GLUE_SYNC_BACKEND_HOST_IMPL_H_
 #define CHROME_BROWSER_SYNC_GLUE_SYNC_BACKEND_HOST_IMPL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread.h"
 #include "chrome/browser/sync/glue/extensions_activity_monitor.h"
 #include "chrome/browser/sync/glue/sync_backend_host.h"
 #include "components/invalidation/public/invalidation_handler.h"
 #include "components/sync_driver/backend_data_type_configurer.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/internal_api/public/configure_reason.h"
 #include "sync/internal_api/public/sessions/sync_session_snapshot.h"
 #include "sync/internal_api/public/sessions/type_debug_info_observer.h"
 #include "sync/internal_api/public/sync_manager.h"
-#include "sync/internal_api/public/util/unrecoverable_error_handler.h"
 #include "sync/internal_api/public/util/weak_handle.h"
 #include "sync/protocol/encryption.pb.h"
 #include "sync/protocol/sync_protocol_error.h"
 #include "sync/util/extensions_activity.h"
 
 class GURL;
 class Profile;
 
 namespace base {
 class MessageLoop;
 }
 
 namespace invalidation {
 class InvalidationService;
 }
 
 namespace syncer {
 class NetworkResources;
 class SyncManagerFactory;
+class UnrecoverableErrorHandler;
 }
 
 namespace sync_driver {
 class SyncPrefs;
 }
 
 namespace browser_sync {
 
 class ChangeProcessor;
 class SyncBackendHostCore;
@@ skipping 22 matching lines @@
 
   // SyncBackendHost implementation.
   void Initialize(
       sync_driver::SyncFrontend* frontend,
       scoped_ptr<base::Thread> sync_thread,
       const syncer::WeakHandle<syncer::JsEventHandler>& event_handler,
       const GURL& service_url,
       const syncer::SyncCredentials& credentials,
       bool delete_sync_data_folder,
       scoped_ptr<syncer::SyncManagerFactory> sync_manager_factory,
-      scoped_ptr<syncer::UnrecoverableErrorHandler> unrecoverable_error_handler,
+      const syncer::WeakHandle<syncer::UnrecoverableErrorHandler>&
+          unrecoverable_error_handler,
       const base::Closure& report_unrecoverable_error_function,
       syncer::NetworkResources* network_resources,
       scoped_ptr<syncer::SyncEncryptionHandler::NigoriState> saved_nigori_state)
       override;
   void UpdateCredentials(const syncer::SyncCredentials& credentials) override;
   void StartSyncingWithServer() override;
   void SetEncryptionPassphrase(const std::string& passphrase,
                                bool is_explicit) override;
   bool SetDecryptionPassphrase(const std::string& passphrase) override
       WARN_UNUSED_RESULT;
@@ skipping 270 matching lines @@
   bool invalidation_handler_registered_;
 
   base::WeakPtrFactory<SyncBackendHostImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncBackendHostImpl);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_SYNC_BACKEND_HOST_IMPL_H_