Wire sync shutdown reason from PSS all the way down to sync manager.

sync/internal_api/public/sync_manager.h

 // Copyright 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.
 
 #ifndef SYNC_INTERNAL_API_PUBLIC_SYNC_MANAGER_H_
 #define SYNC_INTERNAL_API_PUBLIC_SYNC_MANAGER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/task_runner.h"
 #include "base/threading/thread_checker.h"
 #include "google_apis/gaia/oauth2_token_service.h"
 #include "sync/base/sync_export.h"
 #include "sync/internal_api/public/base/invalidation_interface.h"
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/internal_api/public/change_record.h"
 #include "sync/internal_api/public/configure_reason.h"
 #include "sync/internal_api/public/engine/model_safe_worker.h"
 #include "sync/internal_api/public/engine/sync_status.h"
 #include "sync/internal_api/public/events/protocol_event.h"
+#include "sync/internal_api/public/shutdown_reason.h"
 #include "sync/internal_api/public/sync_context_proxy.h"
 #include "sync/internal_api/public/sync_encryption_handler.h"
 #include "sync/internal_api/public/util/report_unrecoverable_error_function.h"
 #include "sync/internal_api/public/util/unrecoverable_error_handler.h"
 #include "sync/internal_api/public/util/weak_handle.h"
 #include "sync/protocol/sync_protocol_error.h"
 
 namespace sync_pb {
 class EncryptedData;
 }  // namespace sync_pb
@@ skipping 291 matching lines @@
   virtual void RemoveObserver(Observer* observer) = 0;
 
   // Status-related getter.  May be called on any thread.
   virtual SyncStatus GetDetailedStatus() const = 0;
 
   // Call periodically from a database-safe thread to persist recent changes
   // to the syncapi model.
   virtual void SaveChanges() = 0;
 
   // Issue a final SaveChanges, and close sqlite handles.
-  virtual void ShutdownOnSyncThread() = 0;
+  virtual void ShutdownOnSyncThread(ShutdownReason reason) = 0;
 
   // May be called from any thread.
   virtual UserShare* GetUserShare() = 0;
 
   // Returns an instance of the main interface for non-blocking sync types.
   virtual syncer::SyncContextProxy* GetSyncContextProxy() = 0;
 
   // Returns the cache_guid of the currently open database.
   // Requires that the SyncManager be initialized.
   virtual const std::string cache_guid() = 0;
@@ skipping 28 matching lines @@
       syncer::TypeDebugInfoObserver* observer) = 0;
 
   // Request that all current counter values be emitted as though they had just
   // been updated.  Useful for initializing new observers' state.
   virtual void RequestEmitDebugInfo() = 0;
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_SYNC_MANAGER_H_