[Sync] Move //components/sync to the syncer namespace, take 2.

components/sync/driver/sync_policy_handler.cc

 // Copyright 2013 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_policy_handler.h"
 
 #include "base/values.h"
 #include "components/policy/core/common/policy_map.h"
 #include "components/policy/policy_constants.h"
 #include "components/prefs/pref_value_map.h"
 #include "components/sync/driver/pref_names.h"
 
-namespace sync_driver {
+namespace syncer {
 
 SyncPolicyHandler::SyncPolicyHandler()
     : policy::TypeCheckingPolicyHandler(policy::key::kSyncDisabled,
                                         base::Value::TYPE_BOOLEAN) {}
 
 SyncPolicyHandler::~SyncPolicyHandler() {}
 
 void SyncPolicyHandler::ApplyPolicySettings(const policy::PolicyMap& policies,
                                             PrefValueMap* prefs) {
   const base::Value* value = policies.GetValue(policy_name());
   bool disable_sync;
   if (value && value->GetAsBoolean(&disable_sync) && disable_sync)
-    prefs->SetValue(sync_driver::prefs::kSyncManaged, value->CreateDeepCopy());
+    prefs->SetValue(prefs::kSyncManaged, value->CreateDeepCopy());
 }
 
-}  // namespace sync_driver
+}  // namespace syncer