CallControl & CallEventCallback should use CallEndpoint routing

CallControl
- add requestCallEndpointChange API call

CallEventCallback
- remove onCallAudioStateChanged
- add onCallEndpointChanged
- add onAvailableCallEndpointsChanged
- add onMuteStateChanged

bug: 262912490
Test: cts
Change-Id: Ia6231ee02d8b09c3e0384abf45072023a0a76a48
diff --git a/telecomm/java/android/telecom/CallEventCallback.java b/telecomm/java/android/telecom/CallEventCallback.java
index fd7e101..806febd 100644
--- a/telecomm/java/android/telecom/CallEventCallback.java
+++ b/telecomm/java/android/telecom/CallEventCallback.java
@@ -19,6 +19,7 @@
 
 import android.annotation.NonNull;
 
+import java.util.List;
 import java.util.function.Consumer;
 
 /**
@@ -95,13 +96,6 @@
     void onDisconnect(@NonNull Consumer<Boolean> wasCompleted);
 
     /**
-     * update the client on the new {@link CallAudioState}
-     *
-     * @param callAudioState that is currently being used
-     */
-    void onCallAudioStateChanged(@NonNull CallAudioState callAudioState);
-
-    /**
      * Telecom is informing the client to set the call in streaming.
      *
      * @param wasCompleted The {@link Consumer} to be completed. If the client can stream the
@@ -118,4 +112,26 @@
      * @param reason Code to indicate the reason of this failure
      */
     void onCallStreamingFailed(@CallStreamingService.StreamingFailedReason int reason);
+
+    /**
+     * Telecom is informing the client the current {@link CallEndpoint} changed.
+     *
+     * @param newCallEndpoint The new {@link CallEndpoint} through which call media flows
+     *                       (i.e. speaker, bluetooth, etc.).
+     */
+    void onCallEndpointChanged(@NonNull CallEndpoint newCallEndpoint);
+
+    /**
+     * Telecom is informing the client that the available {@link CallEndpoint}s have changed.
+     *
+     * @param availableEndpoints The set of available {@link CallEndpoint}s reported by Telecom.
+     */
+    void onAvailableCallEndpointsChanged(@NonNull List<CallEndpoint> availableEndpoints);
+
+    /**
+     * Called when the mute state changes.
+     *
+     * @param isMuted The current mute state.
+     */
+    void onMuteStateChanged(boolean isMuted);
 }