Add call streaming related API.

Bug: 262412844
Test: build, cts test
Change-Id: Ib9013291ba5bac4f94fb2919fb2eccb8aa25acb8
diff --git a/telecomm/java/android/telecom/PhoneAccount.java b/telecomm/java/android/telecom/PhoneAccount.java
index 047ab3a..b8c056e 100644
--- a/telecomm/java/android/telecom/PhoneAccount.java
+++ b/telecomm/java/android/telecom/PhoneAccount.java
@@ -437,7 +437,15 @@
      */
     public static final int CAPABILITY_SUPPORTS_TRANSACTIONAL_OPERATIONS = 0x40000;
 
-    /* NEXT CAPABILITY: [0x80000, 0x100000, 0x200000] */
+    /**
+     * Flag indicating that this voip app {@link PhoneAccount} supports the call streaming session
+     * to stream call audio to another remote device via streaming app.
+     *
+     * @see #getCapabilities
+     */
+    public static final int CAPABILITY_SUPPORTS_CALL_STREAMING = 0x80000;
+
+    /* NEXT CAPABILITY: [0x100000, 0x200000, 0x400000] */
 
     /**
      * URI scheme for telephone number URIs.