Device robot refresh token integrity validation.

chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h

Index: chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h
diff --git a/chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h b/chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h
index 005028d0b0699bd6011af132651ddc8bcd072561..e10a54a64a9ccebcebe1ac89c04ab05c3d829efa 100644
--- a/chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h
+++ b/chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos.h
@@ -88,6 +88,11 @@ class DeviceCloudPolicyManagerChromeOS : public CloudPolicyManager {
   // Returns the machine model, or an empty string if not available.
   static std::string GetMachineModel();
 
+  // Returns the robot 'email address' associated with the device robot
+  // account (sometimes called a service account) associated with this device
+  // during enterprise enrollment.
+  std::string GetRobotAccountId();
+
  private:
   // Creates a new CloudPolicyClient.
   scoped_ptr<CloudPolicyClient> CreateClient();