[Sync] Move SyncPrefs into sync_driver component

chrome/browser/sync/sync_prefs.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_SYNC_PREFS_H_
-#define CHROME_BROWSER_SYNC_SYNC_PREFS_H_
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/memory/weak_ptr.h"
-#include "base/observer_list.h"
-#include "base/prefs/pref_member.h"
-#include "base/threading/non_thread_safe.h"
-#include "base/time/time.h"
-#include "sync/internal_api/public/base/model_type.h"
-#include "sync/notifier/invalidation_state_tracker.h"
-
-class PrefService;
-class ProfileIOData;
-
-namespace user_prefs {
-class PrefRegistrySyncable;
-}
-
-namespace browser_sync {
-
-class SyncPrefObserver {
- public:
-  // Called whenever the pref that controls whether sync is managed
-  // changes.
-  virtual void OnSyncManagedPrefChange(bool is_sync_managed) = 0;
-
- protected:
-  virtual ~SyncPrefObserver();
-};
-
-// SyncPrefs is a helper class that manages getting, setting, and
-// persisting global sync preferences.  It is not thread-safe, and
-// lives on the UI thread.
-//
-// TODO(akalin): Some classes still read the prefs directly.  Consider
-// passing down a pointer to SyncPrefs to them.  A list of files:
-//
-//   profile_sync_service_startup_unittest.cc
-//   profile_sync_service.cc
-//   sync_setup_flow.cc
-//   sync_setup_wizard.cc
-//   sync_setup_wizard_unittest.cc
-//   two_client_preferences_sync_test.cc
-class SyncPrefs : NON_EXPORTED_BASE(public base::NonThreadSafe),
-                  public base::SupportsWeakPtr<SyncPrefs> {
- public:
-  // |pref_service| may not be NULL.
-  // Does not take ownership of |pref_service|.
-  explicit SyncPrefs(PrefService* pref_service);
-
-  virtual ~SyncPrefs();
-
-  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
-
-  void AddSyncPrefObserver(SyncPrefObserver* sync_pref_observer);
-  void RemoveSyncPrefObserver(SyncPrefObserver* sync_pref_observer);
-
-  // Clears important sync preferences.
-  void ClearPreferences();
-
-  // Getters and setters for global sync prefs.
-
-  bool HasSyncSetupCompleted() const;
-  void SetSyncSetupCompleted();
-
-  bool SyncHasAuthError() const;
-  void SetSyncAuthError(bool error);
-
-  bool IsStartSuppressed() const;
-  void SetStartSuppressed(bool is_suppressed);
-
-  std::string GetGoogleServicesUsername() const;
-
-  base::Time GetLastSyncedTime() const;
-  void SetLastSyncedTime(base::Time time);
-
-  bool HasKeepEverythingSynced() const;
-  void SetKeepEverythingSynced(bool keep_everything_synced);
-
-  // The returned set is guaranteed to be a subset of
-  // |registered_types|.  Returns |registered_types| directly if
-  // HasKeepEverythingSynced() is true.
-  syncer::ModelTypeSet GetPreferredDataTypes(
-      syncer::ModelTypeSet registered_types) const;
-  // |preferred_types| should be a subset of |registered_types|.  All
-  // types in |preferred_types| are marked preferred, and all types in
-  // |registered_types| \ |preferred_types| are marked not preferred.
-  // Changes are still made to the prefs even if
-  // HasKeepEverythingSynced() is true, but won't be visible until
-  // SetKeepEverythingSynced(false) is called.
-  void SetPreferredDataTypes(
-    syncer::ModelTypeSet registered_types,
-    syncer::ModelTypeSet preferred_types);
-
-  // This pref is set outside of sync.
-  bool IsManaged() const;
-
-  // Use this encryption bootstrap token if we're using an explicit passphrase.
-  std::string GetEncryptionBootstrapToken() const;
-  void SetEncryptionBootstrapToken(const std::string& token);
-
-  // Use this keystore bootstrap token if we're not using an explicit
-  // passphrase.
-  std::string GetKeystoreEncryptionBootstrapToken() const;
-  void SetKeystoreEncryptionBootstrapToken(const std::string& token);
-
-  // Use this for the unique machine tag used for session sync.
-  std::string GetSyncSessionsGUID() const;
-  void SetSyncSessionsGUID(const std::string& guid);
-
-  // Maps |data_type| to its corresponding preference name.
-  static const char* GetPrefNameForDataType(syncer::ModelType data_type);
-
-#if defined(OS_CHROMEOS)
-  // Use this spare bootstrap token only when setting up sync for the first
-  // time.
-  std::string GetSpareBootstrapToken() const;
-  void SetSpareBootstrapToken(const std::string& token);
-#endif
-
-  // Merges the given set of types with the set of acknowledged types.
-  void AcknowledgeSyncedTypes(syncer::ModelTypeSet types);
-
-  // For testing.
-
-  void SetManagedForTest(bool is_managed);
-  syncer::ModelTypeSet GetAcknowledgeSyncedTypesForTest() const;
-
- private:
-  void RegisterPrefGroups();
-
-  static void RegisterDataTypePreferredPref(
-      user_prefs::PrefRegistrySyncable* prefs,
-      syncer::ModelType type,
-      bool is_preferred);
-  bool GetDataTypePreferred(syncer::ModelType type) const;
-  void SetDataTypePreferred(syncer::ModelType type, bool is_preferred);
-
-  // Returns a ModelTypeSet based on |types| expanded to include pref groups
-  // (see |pref_groups_|), but as a subset of |registered_types|.
-  syncer::ModelTypeSet ResolvePrefGroups(
-      syncer::ModelTypeSet registered_types,
-      syncer::ModelTypeSet types) const;
-
-  void OnSyncManagedPrefChanged();
-
-  // May be NULL.
-  PrefService* const pref_service_;
-
-  ObserverList<SyncPrefObserver> sync_pref_observers_;
-
-  // The preference that controls whether sync is under control by
-  // configuration management.
-  BooleanPrefMember pref_sync_managed_;
-
-  // Groups of prefs that always have the same value as a "master" pref.
-  // For example, the APPS group has {APP_NOTIFICATIONS, APP_SETTINGS}
-  // (as well as APPS, but that is implied), so
-  //   pref_groups_[syncer::APPS] =       { syncer::APP_NOTIFICATIONS,
-  //                                          syncer::APP_SETTINGS }
-  //   pref_groups_[syncer::EXTENSIONS] = { syncer::EXTENSION_SETTINGS }
-  // etc.
-  typedef std::map<syncer::ModelType, syncer::ModelTypeSet> PrefGroupsMap;
-  PrefGroupsMap pref_groups_;
-
-  DISALLOW_COPY_AND_ASSIGN(SyncPrefs);
-};
-
-}  // namespace browser_sync
-
-#endif  // CHROME_BROWSER_SYNC_SYNC_PREFS_H_