Display InCallUI on auto answer

When a MT call is auto answered bring the InCallUI to
foreground by starting the InCallActivity.

Change-Id: I77e21f41699fa3ff78dd793d2f226ad95d11497f
CRs-Fixed: 749609, 800088
diff --git a/InCallUI/src/com/android/incallui/InCallPresenter.java b/InCallUI/src/com/android/incallui/InCallPresenter.java
index e3afa37..24b7db4 100644
--- a/InCallUI/src/com/android/incallui/InCallPresenter.java
+++ b/InCallUI/src/com/android/incallui/InCallPresenter.java
@@ -1297,6 +1297,18 @@
 
         // TODO: Consider a proper state machine implementation
 
+        //If the call is auto answered bring up the InCallActivity
+        boolean isAutoAnswer = false;
+
+        if ((mCallList.getDisconnectedCall() == null) &&
+                (mCallList.getDisconnectingCall() == null)) {
+            isAutoAnswer = (mInCallState == InCallState.INCOMING) &&
+                               (newState == InCallState.INCALL) &&
+                               (mInCallActivity == null);
+        }
+
+        Log.d(this, "startOrFinishUi: " + isAutoAnswer);
+
         // If the state isn't changing we have already done any starting/stopping of activities in
         // a previous pass...so lets cut out early
         if (newState == mInCallState) {
@@ -1373,7 +1385,7 @@
             return mInCallState;
         }
 
-        if (showCallUi || showAccountPicker) {
+        if (showCallUi || showAccountPicker || isAutoAnswer) {
             Log.i(this, "Start in call UI");
             showInCall(false /* showDialpad */, !showAccountPicker /* newOutgoingCall */);
         } else if (startIncomingCallSequence) {