Update server-backed state key generation.

chromeos/system/statistics_provider.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 "chromeos/system/statistics_provider.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
@@ skipping 54 matching lines @@
 
 }  // namespace
 
 // Key values for GetMachineStatistic()/GetMachineFlag() calls.
 const char kDevSwitchBootMode[] = "devsw_boot";
 const char kCustomizationIdKey[] = "customization_id";
 const char kHardwareClassKey[] = "hardware_class";
 const char kOffersCouponCodeKey[] = "ubind_attribute";
 const char kOffersGroupCodeKey[] = "gbind_attribute";
 const char kRlzBrandCodeKey[] = "rlz_brand_code";
+const char kDiskSerialNumber[] = "root_disk_serial_number";
 
 // OEM specific statistics. Must be prefixed with "oem_".
 const char kOemCanExitEnterpriseEnrollmentKey[] = "oem_can_exit_enrollment";
 const char kOemDeviceRequisitionKey[] = "oem_device_requisition";
 const char kOemIsEnterpriseManagedKey[] = "oem_enterprise_managed";
 const char kOemKeyboardDrivenOobeKey[] = "oem_keyboard_driven_oobe";
 
 bool HasOemPrefix(const std::string& name) {
   return name.substr(0, 4) == "oem_";
 }
@@ skipping 225 matching lines @@
   return StatisticsProviderImpl::GetInstance();
 }
 
 // static
 void StatisticsProvider::SetTestProvider(StatisticsProvider* test_provider) {
   g_test_statistics_provider = test_provider;
 }
 
 }  // namespace system
 }  // namespace chromeos