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

components/sync/engine_impl/sync_scheduler.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.
 //
 // A class to schedule syncer tasks intelligently.
 #ifndef COMPONENTS_SYNC_ENGINE_IMPL_SYNC_SCHEDULER_H_
 #define COMPONENTS_SYNC_ENGINE_IMPL_SYNC_SCHEDULER_H_
 
 #include <memory>
 #include <string>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/time/time.h"
 #include "components/sync/base/invalidation_interface.h"
+#include "components/sync/engine_impl/cycle/sync_cycle.h"
 #include "components/sync/engine_impl/nudge_source.h"
-#include "components/sync/sessions_impl/sync_session.h"
 
 namespace tracked_objects {
 class Location;
 }  // namespace tracked_objects
 
 namespace syncer {
 
 struct ServerConnectionEvent;
 
 struct ConfigurationParams {
@@ skipping 21 matching lines @@
 
 struct ClearParams {
   explicit ClearParams(const base::Closure& report_success_task);
   ClearParams(const ClearParams& other);
   ~ClearParams();
 
   // Callback to invoke on successful completion.
   base::Closure report_success_task;
 };
 
-class SyncScheduler : public sessions::SyncSession::Delegate {
+class SyncScheduler : public SyncCycle::Delegate {
  public:
   enum Mode {
     // In this mode, the thread only performs configuration tasks.  This is
     // designed to make the case where we want to download updates for a
     // specific type only, and not continue syncing until we are moved into
     // normal mode.
     CONFIGURATION_MODE,
     // This mode is used to issue a clear server data command.  The scheduler
     // may only transition to this mode from the CONFIGURATION_MODE.  When in
     // this mode, the only schedulable operation is |SchedulerClearServerData|.
@@ skipping 66 matching lines @@
       const tracked_objects::Location& nudge_location) = 0;
 
   // Requests a non-blocking initial sync request for the specified type.
   //
   // Many types can only complete initial sync while the scheduler is in
   // configure mode, but a few of them are able to perform their initial sync
   // while the scheduler is in normal mode.  This non-blocking initial sync
   // can be requested through this function.
   virtual void ScheduleInitialSyncNudge(syncer::ModelType model_type) = 0;
 
-  // Change status of notifications in the SyncSessionContext.
+  // Change status of notifications in the SyncCycleContext.
   virtual void SetNotificationsEnabled(bool notifications_enabled) = 0;
 
   // Called when credentials are updated by the user.
   virtual void OnCredentialsUpdated() = 0;
 
   // Called when the network layer detects a connection status change.
   virtual void OnConnectionStatusChange() = 0;
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_ENGINE_IMPL_SYNC_SCHEDULER_H_