[Sync] Move //components/sync_driver to //components/sync/driver.

components/sync_driver/sync_driver_switches.cc

-// 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.
-
-#include "components/sync_driver/sync_driver_switches.h"
-
-namespace switches {
-
-// Allows overriding the deferred init fallback timeout.
-const char kSyncDeferredStartupTimeoutSeconds[] =
-    "sync-deferred-startup-timeout-seconds";
-
-// Enables deferring sync backend initialization until user initiated changes
-// occur.
-const char kSyncDisableDeferredStartup[] = "sync-disable-deferred-startup";
-
-// Enables feature to avoid unnecessary GetUpdate requests.
-const char kSyncEnableGetUpdateAvoidance[] =
-    "sync-enable-get-update-avoidance";
-
-// Enables USS implementation of DeviceInfo datatype. This flag controls whether
-// SyncableService based or ModelTypeService based implementation is used for
-// DeviceInfo type.
-const char kSyncEnableUSSDeviceInfo[] = "sync-enable-uss-device-info";
-
-// Overrides the default server used for profile sync.
-const char kSyncServiceURL[] = "sync-url";
-
-// This flag causes sync to retry very quickly (see polling_constants.h) the
-// when it encounters an error, as the first step towards exponential backoff.
-const char kSyncShortInitialRetryOverride[] =
-    "sync-short-initial-retry-override";
-
-// Enables clearing of sync data when a user enables passphrase encryption.
-const base::Feature kSyncClearDataOnPassphraseEncryption{
-    "ClearSyncDataOnPassphraseEncryption", base::FEATURE_DISABLED_BY_DEFAULT};
-
-}  // namespace switches