chrome/browser/prefs/tracked/tracked_preferences_migration.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_PREFS_TRACKED_TRACKED_PREFERENCES_MIGRATION_H_
   6 #define CHROME_BROWSER_PREFS_TRACKED_TRACKED_PREFERENCES_MIGRATION_H_
   7
   8 #include <set>
   9 #include <string>
  10
  11 #include "base/callback_forward.h"
  12
  13 class InterceptablePrefFilter;
  14
  15 // Sets up InterceptablePrefFilter::FilterOnLoadInterceptors on
  16 // |unprotected_pref_filter| and |protected_pref_filter| which prevents each
  17 // filter from running their on load operations until the interceptors decide to
  18 // hand the prefs back to them (after migration is complete). |
  19 // (un)protected_store_cleaner| and
  20 // |register_on_successful_(un)protected_store_write_callback| are used to do
  21 // post-migration cleanup tasks. Those should be bound to weak pointers to avoid
  22 // blocking shutdown. The migration framework is resilient to a failed cleanup
  23 // (it will simply try again in the next Chrome run).
  24 void SetupTrackedPreferencesMigration(
  25     const std::set<std::string>& unprotected_pref_names,
  26     const std::set<std::string>& protected_pref_names,
  27     const base::Callback<void(const std::string& key)>&
  28         unprotected_store_cleaner,
  29     const base::Callback<void(const std::string& key)>& protected_store_cleaner,
  30     const base::Callback<void(const base::Closure&)>&
  31         register_on_successful_unprotected_store_write_callback,
  32     const base::Callback<void(const base::Closure&)>&
  33         register_on_successful_protected_store_write_callback,
  34     InterceptablePrefFilter* unprotected_pref_filter,
  35     InterceptablePrefFilter* protected_pref_filter);
  36
  37 #endif  // CHROME_BROWSER_PREFS_TRACKED_TRACKED_PREFERENCES_MIGRATION_H_