Changing SpawnChild to return a struct.

base/android/java/src/org/chromium/base/ParcelableWrapper.aidl

Index: base/android/java/src/org/chromium/base/ParcelableWrapper.aidl
diff --git a/base/android/java/src/org/chromium/base/ParcelableWrapper.aidl b/base/android/java/src/org/chromium/base/ParcelableWrapper.aidl
new file mode 100644
index 0000000000000000000000000000000000000000..b4a387034457f98995387b8a6440ac6fc065cd31
--- /dev/null
+++ b/base/android/java/src/org/chromium/base/ParcelableWrapper.aidl
@@ -0,0 +1,7 @@
+// Copyright 2017 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;
+
+parcelable ParcelableWrapper;