* Transition host to STAGE_UPDATING after pairing.
* Add enrollment status to proto
* Remove stages not handled by HostPairingController, and ControllerPairingController.
* UpdateScreen sends update status via remora_controller.
* EnrollmentScreen sends enrollment status via remora_controller.
* Remove auth_token_ from EnrollmentScreen.
* Rename to shark_controller and remora_controller in WizardController.
* Remove get_initial_status_ from BluetoothControllerPairingController.

Review URL: https://codereview.chromium.org/652743003

Cr-Commit-Position: refs/heads/master@{#299422}
diff --git a/components/pairing/pairing_api.proto b/components/pairing/pairing_api.proto
index 98eab7a..0d8e6680 100644
--- a/components/pairing/pairing_api.proto
+++ b/components/pairing/pairing_api.proto
@@ -26,10 +26,18 @@
     UPDATE_STATUS_UPDATED = 3;
   }
 
+  enum EnrollmentStatus {
+    ENROLLMENT_STATUS_UNKNOWN = 0;
+    ENROLLMENT_STATUS_ENROLLING = 1;
+    ENROLLMENT_STATUS_FAILURE = 2;
+    ENROLLMENT_STATUS_SUCCESS = 3;
+  }
+
   optional string domain = 1;
   optional Connectivity connectivity = 2;
   optional UpdateStatus update_status = 3;
-  repeated string paired_controllers = 4;
+  optional EnrollmentStatus enrollment_status = 4;
+  repeated string paired_controllers = 5;
 }
 
 message HostStatus {