[Sync] Move 'sync' target to sync/

chrome/browser/sync/engine/syncer.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.
-
-#ifndef CHROME_BROWSER_SYNC_ENGINE_SYNCER_H_
-#define CHROME_BROWSER_SYNC_ENGINE_SYNCER_H_
-#pragma once
-
-#include <utility>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/gtest_prod_util.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/synchronization/lock.h"
-#include "chrome/browser/sync/engine/conflict_resolver.h"
-#include "chrome/browser/sync/engine/syncer_types.h"
-#include "chrome/browser/sync/engine/syncproto.h"
-#include "chrome/browser/sync/sessions/sync_session.h"
-#include "chrome/browser/sync/syncable/model_type.h"
-#include "chrome/browser/sync/util/extensions_activity_monitor.h"
-
-namespace syncable {
-class Entry;
-class MutableEntry;
-}  // namespace syncable
-
-namespace browser_sync {
-
-enum SyncerStep {
-  SYNCER_BEGIN,
-  CLEANUP_DISABLED_TYPES,
-  DOWNLOAD_UPDATES,
-  PROCESS_CLIENT_COMMAND,
-  VERIFY_UPDATES,
-  PROCESS_UPDATES,
-  STORE_TIMESTAMPS,
-  APPLY_UPDATES,
-  BUILD_COMMIT_REQUEST,
-  POST_COMMIT_MESSAGE,
-  PROCESS_COMMIT_RESPONSE,
-  RESOLVE_CONFLICTS,
-  APPLY_UPDATES_TO_RESOLVE_CONFLICTS,
-  CLEAR_PRIVATE_DATA,  // TODO(tim): Rename 'private' to 'user'.
-  SYNCER_END
-};
-
-// A Syncer provides a control interface for driving the individual steps
-// of the sync cycle.  Each cycle (hopefully) moves the client into closer
-// synchronization with the server.  The individual steps are modeled
-// as SyncerCommands, and the ordering of the steps is expressed using
-// the SyncerStep enum.
-//
-// A Syncer instance expects to run on a dedicated thread.  Calls
-// to SyncShare() may take an unbounded amount of time, as SyncerCommands
-// may block on network i/o, on lock contention, or on tasks posted to
-// other threads.
-class Syncer {
- public:
-  typedef std::vector<int64> UnsyncedMetaHandles;
-
-  Syncer();
-  virtual ~Syncer();
-
-  // Called by other threads to tell the syncer to stop what it's doing
-  // and return early from SyncShare, if possible.
-  bool ExitRequested();
-  void RequestEarlyExit();
-
-  // Runs a sync cycle from |first_step| to |last_step|.
-  virtual void SyncShare(sessions::SyncSession* session,
-                         SyncerStep first_step,
-                         SyncerStep last_step);
-
- private:
-  // Implements the PROCESS_CLIENT_COMMAND syncer step.
-  void ProcessClientCommand(sessions::SyncSession* session);
-
-  bool early_exit_requested_;
-  base::Lock early_exit_requested_lock_;
-
-  ConflictResolver resolver_;
-
-  friend class SyncerTest;
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, NameClashWithResolver);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, IllegalAndLegalUpdates);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, TestCommitListOrderingAndNewParent);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest,
-                           TestCommitListOrderingAndNewParentAndChild);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, TestCommitListOrderingCounterexample);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, TestCommitListOrderingWithNesting);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, TestCommitListOrderingWithNewItems);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, TestGetUnsyncedAndSimpleCommit);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, TestPurgeWhileUnsynced);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, TestPurgeWhileUnapplied);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, UnappliedUpdateDuringCommit);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, DeletingEntryInFolder);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest,
-                           LongChangelistCreatesFakeOrphanedEntries);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, QuicklyMergeDualCreatedHierarchy);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, LongChangelistWithApplicationConflict);
-  FRIEND_TEST_ALL_PREFIXES(SyncerTest, DeletingEntryWithLocalEdits);
-  FRIEND_TEST_ALL_PREFIXES(EntryCreatedInNewFolderTest,
-                           EntryCreatedInNewFolderMidSync);
-
-  DISALLOW_COPY_AND_ASSIGN(Syncer);
-};
-
-// Utility function declarations.
-void CopyServerFields(syncable::Entry* src, syncable::MutableEntry* dest);
-void ClearServerData(syncable::MutableEntry* entry);
-const char* SyncerStepToString(const SyncerStep);
-
-}  // namespace browser_sync
-
-#endif  // CHROME_BROWSER_SYNC_ENGINE_SYNCER_H_