Add assisted dialing to the call composer activity.

Bug: 70802770
Test: didn't see a great place to test this.
PiperOrigin-RevId: 180563660
Change-Id: Id2d466881e7451de5f56d485e79ef2065a027cd3
diff --git a/java/com/android/dialer/callcomposer/CallComposerActivity.java b/java/com/android/dialer/callcomposer/CallComposerActivity.java
index 0d47c70..ce3f7f2 100644
--- a/java/com/android/dialer/callcomposer/CallComposerActivity.java
+++ b/java/com/android/dialer/callcomposer/CallComposerActivity.java
@@ -481,7 +481,10 @@
 
   private void placeTelecomCall() {
     PreCall.start(
-        this, new CallIntentBuilder(contact.getNumber(), CallInitiationType.Type.CALL_COMPOSER));
+        this,
+        new CallIntentBuilder(contact.getNumber(), CallInitiationType.Type.CALL_COMPOSER)
+            // Call composer is only active if the number is associated with a known contact.
+            .setAllowAssistedDial(true));
     setResult(RESULT_OK);
     finish();
   }