sync: migrate invalidation state from syncable::Directory to InvalidationStorage

chrome/common/pref_names.cc

 // 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.
 
 #include "chrome/common/pref_names.h"
 
 #include "base/basictypes.h"
 
 namespace prefs {
 
@@ skipping 1536 matching lines @@
 
 // Dictionary from sync model type (as an int) to max invalidation
 // version (int64 represented as a string).
 const char kSyncMaxInvalidationVersions[] = "sync.max_invalidation_versions";
 
 // The GUID session sync will use to identify this client, even across sync
 // disable/enable events.
 const char kSyncSessionsGUID[] = "sync.session_sync_guid";
 
 // Opaque state from the invalidation subsystem that is persisted via prefs.
+// The value is base 64 encoded.
 const char kInvalidatorInvalidationState[] = "invalidator.invalidation_state";
 
 // A string that can be used to restore sync encryption infrastructure on
 // startup so that the user doesn't need to provide credentials on each start.
 const char kSyncEncryptionBootstrapToken[] =
     "sync.encryption_bootstrap_token";
 
 // Boolean tracking whether the user chose to specify a secondary encryption
 // passphrase.
 const char kSyncUsingSecondaryPassphrase[] = "sync.using_secondary_passphrase";
@@ skipping 334 matching lines @@
 const char kInManagedMode[] = "managed_mode";
 
 // Counts how many more times the 'profile on a network share' warning should be
 // shown to the user before the next silence period.
 const char kNetworkProfileWarningsLeft[] = "network_profile.warnings_left";
 // Tracks the time of the last shown warning. Used to reset
 // |network_profile.warnings_left| after a silence period.
 const char kNetworkProfileLastWarningTime[] =
     "network_profile.last_warning_time";
 }  // namespace prefs