[Sync] Move sessions/ to engine/cycle/ and rename things to match.

components/sync/driver/glue/sync_backend_host.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 COMPONENTS_SYNC_DRIVER_GLUE_SYNC_BACKEND_HOST_H_
 #define COMPONENTS_SYNC_DRIVER_GLUE_SYNC_BACKEND_HOST_H_
 
 #include <memory>
 #include <string>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/threading/thread.h"
 #include "components/sync/base/model_type.h"
 #include "components/sync/base/weak_handle.h"
 #include "components/sync/core/configure_reason.h"
 #include "components/sync/core/shutdown_reason.h"
 #include "components/sync/core/sync_manager.h"
 #include "components/sync/core/sync_manager_factory.h"
 #include "components/sync/driver/backend_data_type_configurer.h"
-#include "components/sync/sessions/sync_session_snapshot.h"
+#include "components/sync/engine/cycle/sync_cycle_snapshot.h"
 
 class GURL;
 
 namespace base {
 class MessageLoop;
 }
 
 namespace syncer {
 class CancelationSignal;
 class HttpPostProviderFactory;
@@ skipping 124 matching lines @@
   virtual void EnableEncryptEverything() = 0;
 
   // Called on |frontend_loop_| to obtain a handle to the UserShare needed for
   // creating transactions.  Should not be called before we signal
   // initialization is complete with OnBackendInitialized().
   virtual syncer::UserShare* GetUserShare() const = 0;
 
   // Called from any thread to obtain current status information in detailed or
   // summarized form.
   virtual Status GetDetailedStatus() = 0;
-  virtual syncer::sessions::SyncSessionSnapshot GetLastSessionSnapshot()
-      const = 0;
+  virtual syncer::SyncCycleSnapshot GetLastCycleSnapshot() const = 0;
 
   // Determines if the underlying sync engine has made any local changes to
   // items that have not yet been synced with the server.
   // ONLY CALL THIS IF OnInitializationComplete was called!
   virtual bool HasUnsyncedItems() const = 0;
 
   // Whether or not we are syncing encryption keys.
   virtual bool IsNigoriEnabled() const = 0;
 
   // Returns the type of passphrase being used to encrypt data. See
@@ skipping 53 matching lines @@
   // See SyncManager::OnCookieJarChanged.
   virtual void OnCookieJarChanged(bool account_mismatch, bool empty_jar) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncBackendHost);
 };
 
 }  // namespace browser_sync
 
 #endif  // COMPONENTS_SYNC_DRIVER_GLUE_SYNC_BACKEND_HOST_H_