Changing SpawnChild to return a struct.

testing/android/native_test/java/AndroidManifest.xml.jinja2

Index: testing/android/native_test/java/AndroidManifest.xml.jinja2
diff --git a/testing/android/native_test/java/AndroidManifest.xml.jinja2 b/testing/android/native_test/java/AndroidManifest.xml.jinja2
index c465cac72d4bb27c87b3aa4fbd7c261bec772fe0..4982183d169f246d2360575f94344ff63c0a935f 100644
--- a/testing/android/native_test/java/AndroidManifest.xml.jinja2
+++ b/testing/android/native_test/java/AndroidManifest.xml.jinja2
@@ -58,7 +58,14 @@ found in the LICENSE file.
                  android:process=":test_client_process{{ i }}"
                  android:isolatedProcess="false"
                  android:exported="false" />
+        <service android:name="org.chromium.base.MultiprocessTestSideChannelService{{ i }}"
+                 android:process=":test_client_process{{ i }}"
+                 android:isolatedProcess="false"
+                 android:exported="false" />
+
         {% endfor %}
+
+
     </application>
 
     <instrumentation android:name="org.chromium.native_test.NativeTestInstrumentationTestRunner"