Multiprocess test client: Android child process launcher rework.

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

 <?xml version="1.0" encoding="utf-8"?>
 <!--
 Copyright 2014 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.
 -->
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
       package="org.chromium.native_test"
       android:versionCode="1"
@@ skipping 29 matching lines @@
         <activity android:name=".NativeUnitTestActivity"
                 android:label="NativeTest"
                 android:configChanges="orientation|keyboardHidden"
                 android:process=":test_process">
         {% endif %}
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
+        {% set num_test_client_services = 5 %}
+        <meta-data android:name="org.chromium.native_test.NUM_TEST_CLIENT_SERVICES"
+                   android:value="{{ num_test_client_services }}"/>
+        {% for i in range(num_test_client_services) %}
+        <service android:name="org.chromium.base.MultiprocessTestClientService{{ i }}"
+                 android:process=":test_client_process{{ i }}"
+                 android:isolatedProcess="false"
+                 android:exported="false" />
+        {% endfor %}
     </application>
 
     <instrumentation android:name="org.chromium.native_test.NativeTestInstrumentationTestRunner"
             android:targetPackage="org.chromium.native_test"
             android:label="Instrumentation entry point for org.chromium.native_test"/>
 
 </manifest>