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

components/sync/sessions_impl/status_controller.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.
-
-// StatusController handles all counter and status related number crunching and
-// state tracking on behalf of a SyncSession.
-//
-// This object may be accessed from many different threads.  It will be accessed
-// most often from the syncer thread.  However, when update application is in
-// progress it may also be accessed from the worker threads.  This is safe
-// because only one of them will run at a time, and the syncer thread will be
-// blocked until update application completes.
-//
-// This object contains only global state.  None of its members are per model
-// type counters.
-
-#ifndef COMPONENTS_SYNC_SESSIONS_IMPL_STATUS_CONTROLLER_H_
-#define COMPONENTS_SYNC_SESSIONS_IMPL_STATUS_CONTROLLER_H_
-
-#include <map>
-#include <vector>
-
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/stl_util.h"
-#include "base/time/time.h"
-#include "components/sync/engine/model_safe_worker.h"
-#include "components/sync/sessions/model_neutral_state.h"
-
-namespace syncer {
-namespace sessions {
-
-class StatusController {
- public:
-  StatusController();
-  ~StatusController();
-
-  // The types included in the get updates and commit client to server requests.
-  const ModelTypeSet get_updates_request_types() const;
-  void set_get_updates_request_types(ModelTypeSet value);
-  const ModelTypeSet commit_request_types() const;
-  void set_commit_request_types(ModelTypeSet value);
-
-  // Various conflict counters.
-  int num_encryption_conflicts() const;
-  int num_hierarchy_conflicts() const;
-  int num_server_conflicts() const;
-
-  // Aggregate sum of all conflicting items over all conflict types.
-  int TotalNumConflictingItems() const;
-
-  // Number of successfully applied updates.
-  int num_updates_applied() const;
-
-  int num_server_overwrites() const;
-  int num_local_overwrites() const;
-
-  // The time at which we started the first sync cycle in this session.
-  base::Time sync_start_time() const { return sync_start_time_; }
-
-  // If a poll was performed in this session, the time at which it finished.
-  // Not set if no poll was performed.
-  base::Time poll_finish_time() const { return poll_finish_time_; }
-
-  const ModelNeutralState& model_neutral_state() const {
-    return model_neutral_;
-  }
-
-  SyncerError last_get_key_result() const;
-
-  // Download counters.
-  void increment_num_updates_downloaded_by(int value);
-  void increment_num_tombstone_updates_downloaded_by(int value);
-  void increment_num_reflected_updates_downloaded_by(int value);
-
-  // Update application and conflict resolution counters.
-  void increment_num_updates_applied_by(int value);
-  void increment_num_encryption_conflicts_by(int value);
-  void increment_num_hierarchy_conflicts_by(int value);
-  void increment_num_server_conflicts();
-  void increment_num_local_overwrites();
-  void increment_num_server_overwrites();
-
-  // Commit counters.
-  void increment_num_successful_commits();
-  void increment_num_successful_bookmark_commits();
-  void set_num_successful_bookmark_commits(int value);
-
-  // Server communication status tracking.
-  void set_last_get_key_result(const SyncerError result);
-  void set_last_download_updates_result(const SyncerError result);
-  void set_commit_result(const SyncerError result);
-
-  void UpdateStartTime();
-  void UpdatePollTime();
-
- private:
-  ModelNeutralState model_neutral_;
-
-  // Time the last sync cycle began.
-  base::Time sync_start_time_;
-
-  // If a poll was performed, the time it finished. Not set if not poll was
-  // performed.
-  base::Time poll_finish_time_;
-
-  DISALLOW_COPY_AND_ASSIGN(StatusController);
-};
-
-}  // namespace sessions
-}  // namespace syncer
-
-#endif  // COMPONENTS_SYNC_SESSIONS_IMPL_STATUS_CONTROLLER_H_