simulateGattDisconnection to be a response to a connection request

Author: chengweih001

index.bs

@@ -4234,6 +4234,8 @@ To <dfn>clean up the disconnected device</dfn> |deviceObj|, the UA must:
 1. Set <code><var>deviceObj</var>.gatt.{{BluetoothRemoteGATTServer/connected}}</code>
     to `false`.
 1. Clear <code><var>deviceObj</var>.gatt.{{[[activeAlgorithms]]}}</code>.
+1. Set <code><var>deviceObj</var>.gatt.{{[[automatedGATTConnectionResponse]]}}</code> to
+    `"not-expected"`.
 1. Let |context| be <code>|deviceObj|.{{[[context]]}}</code>.
 1. Remove all entries from <code>|context|.{{[[attributeInstanceMap]]}}</code>
     whose keys are inside <code>|deviceObj|.{{[[representedDevice]]}}</code>.
@@ -5541,8 +5543,8 @@ The [=remote end steps=] with command parameters |params| are:
     |simulatedDevice| inside |navigable|'s <a>active window</a>'s <a spec=HTML>associated <code>Navigator</code></a>'s
     [=associated Bluetooth=].
 1. If |simulatedDeviceInstance|.{{[[gatt]]}}.{{[[automatedGATTConnectionResponse]]}} is `"expected"`,
-    return [=error=] with [=error code=] [=invalid element state=].
-1. <a>Clean up the disconnected device</a> |simulatedDeviceInstance|.
+    set |simulatedDeviceInstance|.{{[[gatt]]}}.{{[[automatedGATTConnectionResponse]]}} to `"disconnection-simulated"`
+1. Otherwise, <a>clean up the disconnected device</a> |simulatedDeviceInstance|.
 
 </div>