[Android] Refactor browser test execution.

content/shell/android/browsertests_apk/AndroidManifest.xml.jinja2

 <?xml version="1.0" encoding="utf-8"?>
 
 <!-- Copyright (c) 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.
  -->
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.chromium.content_browsertests_apk">
 
     <application android:name="ContentBrowserTestsApplication"
             android:label="ContentBrowserTests">
         <activity android:name="ContentBrowserTestsActivity"
                   android:launchMode="singleTask"
                   android:theme="@android:style/Theme.Holo.Light.NoActionBar"
                   android:configChanges="orientation|keyboardHidden|keyboard|screenSize"
-                  android:hardwareAccelerated="true">
+                  android:hardwareAccelerated="true"
+                  android:process=":test_process">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
             </intent-filter>
         </activity>
         <!-- The following service entries exist in order to allow us to
              start more than one sandboxed process. -->
 
         <!-- NOTE: If you change the values of "android:process" for any of the below services,
              you also need to update kHelperProcessExecutableName in chrome_constants.cc. -->
@@ skipping 36 matching lines @@
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
     <uses-permission android:name="android.permission.RECORD_AUDIO"/>
     <uses-permission android:name="android.permission.VIBRATE"/>
     <uses-permission android:name="android.permission.WAKE_LOCK"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
 </manifest>