Add GSM conference calling to simulator.

This CL adds a new item to the simulator menu:
  - Add GSM conference

The GSM conference action creates a conference with 5 phone calls.
Users can individually separate or kick calls out of the conference. Hanging up the second last call finishes the conference.

Bug: 67785540
Test: SimulatorConferenceTest
PiperOrigin-RevId: 172377631
Change-Id: Ic30fa6c65cf782247f75bcdd1ecbd86b1c16f143

1 files changed, 4 insertions, 2 deletions

diff --git a/java/com/android/dialer/simulator/impl/SimulatorConnection.java b/java/com/android/dialer/simulator/impl/SimulatorConnection.java
index 70c1095dc..e4a34b51b 100644
--- a/java/com/android/dialer/simulator/impl/SimulatorConnection.java
+++ b/java/com/android/dialer/simulator/impl/SimulatorConnection.java
@@ -41,7 +41,9 @@ public final class SimulatorConnection extends Connection {
         CAPABILITY_MUTE
             | CAPABILITY_SUPPORT_HOLD
             | CAPABILITY_HOLD
-            | CAPABILITY_CAN_UPGRADE_TO_VIDEO);
+            | CAPABILITY_CAN_UPGRADE_TO_VIDEO
+            | CAPABILITY_DISCONNECT_FROM_CONFERENCE
+            | CAPABILITY_SEPARATE_FROM_CONFERENCE);
     setVideoProvider(new SimulatorVideoProvider(context, this));
   }
 
@@ -108,7 +110,7 @@ public final class SimulatorConnection extends Connection {
 
   void onEvent(@NonNull Event event) {
     events.add(Assert.isNotNull(event));
-    for (Listener listener : listeners) {
+    for (Listener listener : new ArrayList<>(listeners)) {
       listener.onEvent(this, event);
     }
   }