[Sync] Move 'sync' target to sync/

chrome/browser/sync/engine/update_applicator.h

-// Copyright (c) 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.
-//
-// An UpdateApplicator is used to iterate over a number of unapplied updates,
-// applying them to the client using the given syncer session.
-//
-// UpdateApplicator might resemble an iterator, but it actually keeps retrying
-// failed updates until no remaining updates can be successfully applied.
-
-#ifndef CHROME_BROWSER_SYNC_ENGINE_UPDATE_APPLICATOR_H_
-#define CHROME_BROWSER_SYNC_ENGINE_UPDATE_APPLICATOR_H_
-#pragma once
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/port.h"
-#include "chrome/browser/sync/engine/model_safe_worker.h"
-#include "chrome/browser/sync/syncable/syncable.h"
-
-namespace browser_sync {
-
-namespace sessions {
-class ConflictProgress;
-class UpdateProgress;
-}
-
-class ConflictResolver;
-class Cryptographer;
-
-class UpdateApplicator {
- public:
-  typedef syncable::Directory::UnappliedUpdateMetaHandles::iterator
-      UpdateIterator;
-
-  UpdateApplicator(ConflictResolver* resolver,
-                   Cryptographer* cryptographer,
-                   const UpdateIterator& begin,
-                   const UpdateIterator& end,
-                   const ModelSafeRoutingInfo& routes,
-                   ModelSafeGroup group_filter);
-  ~UpdateApplicator();
-
-  // returns true if there's more we can do.
-  bool AttemptOneApplication(syncable::WriteTransaction* trans);
-  // return true if we've applied all updates.
-  bool AllUpdatesApplied() const;
-
-  // This class does not automatically save its progress into the
-  // SyncSession -- to get that to happen, call this method after update
-  // application is finished (i.e., when AttemptOneAllocation stops returning
-  // true).
-  void SaveProgressIntoSessionState(
-      sessions::ConflictProgress* conflict_progress,
-      sessions::UpdateProgress* update_progress);
-
- private:
-  // Track the status of all applications.
-  class ResultTracker {
-   public:
-     explicit ResultTracker(size_t num_results);
-     virtual ~ResultTracker();
-     void AddSimpleConflict(syncable::Id);
-     void AddEncryptionConflict(syncable::Id);
-     void AddHierarchyConflict(syncable::Id);
-     void AddSuccess(syncable::Id);
-     void SaveProgress(sessions::ConflictProgress* conflict_progress,
-                       sessions::UpdateProgress* update_progress);
-     void ClearConflicts();
-
-     // Returns true iff conflicting_ids_ is empty. Does not check
-     // encryption_conflict_ids_.
-     bool no_conflicts() const;
-   private:
-    std::vector<syncable::Id> conflicting_ids_;
-    std::vector<syncable::Id> successful_ids_;
-    std::vector<syncable::Id> encryption_conflict_ids_;
-    std::vector<syncable::Id> hierarchy_conflict_ids_;
-  };
-
-  // If true, AttemptOneApplication will skip over |entry| and return true.
-  bool SkipUpdate(const syncable::Entry& entry);
-
-  // Adjusts the UpdateIterator members to move ahead by one update.
-  void Advance();
-
-  // Used to resolve conflicts when trying to apply updates.
-  ConflictResolver* const resolver_;
-
-  // Used to decrypt sensitive sync nodes.
-  Cryptographer* cryptographer_;
-
-  UpdateIterator const begin_;
-  UpdateIterator end_;
-  UpdateIterator pointer_;
-  ModelSafeGroup group_filter_;
-  bool progress_;
-
-  const ModelSafeRoutingInfo routing_info_;
-
-  // Track the result of the attempts to update applications.
-  ResultTracker application_results_;
-
-  DISALLOW_COPY_AND_ASSIGN(UpdateApplicator);
-};
-
-}  // namespace browser_sync
-
-#endif  // CHROME_BROWSER_SYNC_ENGINE_UPDATE_APPLICATOR_H_