Move tracked prefs into services/preferences/tracked.

services/preferences/tracked/device_id_stub.cc

Index: services/preferences/tracked/device_id_stub.cc
diff --git a/components/user_prefs/tracked/device_id_stub.cc b/services/preferences/tracked/device_id_stub.cc
similarity index 86%
rename from components/user_prefs/tracked/device_id_stub.cc
rename to services/preferences/tracked/device_id_stub.cc
index 07ffb944fe51b3c6e7da37bdb18e34d8d66811f4..9db4d503863d4d4b41acd5966b50aa9dc16a84e3 100644
--- a/components/user_prefs/tracked/device_id_stub.cc
+++ b/services/preferences/tracked/device_id_stub.cc
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "components/user_prefs/tracked/device_id.h"
 #include "base/logging.h"
+#include "services/preferences/tracked/device_id.h"
 
 MachineIdStatus GetDeterministicMachineSpecificId(std::string* machine_id) {
   DCHECK(machine_id);