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- // Copyright 2015 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 COMPONENTS_BROWSER_SYNC_BROWSER_SYNC_SWITCHES_H_
- #define COMPONENTS_BROWSER_SYNC_BROWSER_SYNC_SWITCHES_H_
- #include "base/feature_list.h"
- #include "base/metrics/field_trial_params.h"
- #include "build/build_config.h"
- namespace switches {
- // Enabled the local sync backend implemented by the LoopbackServer.
- inline constexpr char kEnableLocalSyncBackend[] = "enable-local-sync-backend";
- // Specifies the local sync backend directory. The name is chosen to mimic
- // user-data-dir etc. This flag only matters if the enable-local-sync-backend
- // flag is present.
- inline constexpr char kLocalSyncBackendDir[] = "local-sync-backend-dir";
- // Sync invalidation switches.
- //
- // Enables providing the list of FCM registration tokens in the commit request.
- inline constexpr base::Feature kSyncUseFCMRegistrationTokensList{
- "SyncUseFCMRegistrationTokensList", base::FEATURE_ENABLED_BY_DEFAULT};
- // Max size of FCM registration tokens list. If the number of active devices
- // having FCM registration tokens is higher, then the resulting list will be
- // empty meaning unknown FCM registration tokens.
- inline constexpr base::FeatureParam<int> kSyncFCMRegistrationTokensListMaxSize{
- &kSyncUseFCMRegistrationTokensList, "SyncFCMRegistrationTokensListMaxSize",
- 5};
- // Enables filtering out inactive devices which haven't sent DeviceInfo update
- // recently (depending on the device's pulse_interval and an additional margin).
- inline constexpr base::Feature kSyncFilterOutInactiveDevicesForSingleClient{
- "SyncFilterOutInactiveDevicesForSingleClient",
- base::FEATURE_DISABLED_BY_DEFAULT};
- // An additional threshold to consider devices as active. It extends device's
- // pulse interval to mitigate possible latency after DeviceInfo commit.
- inline constexpr base::FeatureParam<base::TimeDelta> kSyncActiveDeviceMargin{
- &kSyncFilterOutInactiveDevicesForSingleClient, "SyncActiveDeviceMargin",
- base::Minutes(30)};
- } // namespace switches
- #endif // COMPONENTS_BROWSER_SYNC_BROWSER_SYNC_SWITCHES_H_
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