No persisted device id/token for unmanaged devices

chrome/browser/policy/mock_device_management_backend.h

Index: chrome/browser/policy/mock_device_management_backend.h
diff --git a/chrome/browser/policy/mock_device_management_backend.h b/chrome/browser/policy/mock_device_management_backend.h
index e48e21499e0f0f316a8390dc5f95433483d28797..f0612f408cc20fb566d71c6e3ac2d6b26f4752e3 100644
--- a/chrome/browser/policy/mock_device_management_backend.h
+++ b/chrome/browser/policy/mock_device_management_backend.h
@@ -46,6 +46,7 @@ class MockDeviceManagementBackend
 
   void AllShouldSucceed();
   void AllShouldFail();
+  void UnmanagedDevice();
 
   void SimulateSuccessfulRegisterRequest(
       const std::string& auth_token,
@@ -69,6 +70,12 @@ class MockDeviceManagementBackend
       const em::DevicePolicyRequest& request,
       DevicePolicyResponseDelegate* delegate);
 
+  void SimulateUnmanagedRegisterRequest(
+      const std::string& auth_token,
+      const std::string& device_id,
+      const em::DeviceRegisterRequest& request,
+      DeviceRegisterResponseDelegate* delegate);
+
   void AddBooleanPolicy(const char* policy_name, bool value);
 
  private: