android: Async setupConnection binder call

base/android/java/src/org/chromium/base/process_launcher/IChildProcessService.aidl

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.base.process_launcher;
 
 import android.os.Bundle;
 
+import org.chromium.base.process_launcher.ICallbackInt;
+
 interface IChildProcessService {
   // On the first call to this method, the service will record the calling PID
   // and return true. Subsequent calls will only return true if the calling PID
   // is the same as the recorded one.
   boolean bindToCaller();
 
-  // Sets up the initial IPC channel and returns the pid of the child process.
-  int setupConnection(in Bundle args, IBinder callback);
+  // Sets up the initial IPC channel.
+  oneway void setupConnection(in Bundle args, ICallbackInt pidCallback,
+                              IBinder gpuCallback);
 
   // Asks the child service to crash so that we can test the termination logic.
   oneway void crashIntentionallyForTesting();
 }