Plumb through the post-dial DTMF wait/response

Connect the CallServices with the InCallService for post-dial DTMF
call flows (and the reverse path, for the wait dialog response).

Bug: 13734588
Change-Id: I5cc06268590c3c424ea6daf216cb205b9c470dac
diff --git a/src/com/android/telecomm/InCallController.java b/src/com/android/telecomm/InCallController.java
index 4bba241..6078186 100644
--- a/src/com/android/telecomm/InCallController.java
+++ b/src/com/android/telecomm/InCallController.java
@@ -142,6 +142,16 @@
         }
     }
 
+    void onPostDialWait(Call call, String remaining) {
+        if (mInCallService != null) {
+            Log.i(this, "Calling onPostDialWait, remaining = %s", remaining);
+            try {
+                mInCallService.setPostDialWait(mCallIdMapper.getCallId(call), remaining);
+            } catch (RemoteException ignored) {
+            }
+        }
+    }
+
     void bringToForeground(boolean showDialpad) {
         if (mInCallService != null) {
             try {