Change method of activity tracking done in ActivityStatus.

content/shell/android/shell_apk/src/org/chromium/content_shell_apk/ContentShellApplication.java

 // 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.
 
 package org.chromium.content_shell_apk;
 
-import android.app.Application;
-
+import org.chromium.base.ChromiumApplication;
 import org.chromium.base.PathUtils;
-import org.chromium.content.app.LibraryLoader;
 import org.chromium.content.browser.ResourceExtractor;
 
 /**
  * Entry point for the content shell application.  Handles initialization of information that needs
  * to be shared across the main activity and the child services created.
  */
-public class ContentShellApplication extends Application {
+public class ContentShellApplication extends ChromiumApplication {
 
     private static final String[] MANDATORY_PAK_FILES = new String[] {"content_shell.pak"};
     private static final String PRIVATE_DATA_DIRECTORY_SUFFIX = "content_shell";
 
     @Override
     public void onCreate() {
         super.onCreate();
         initializeApplicationParameters();
     }
 
     public static void initializeApplicationParameters() {
         ResourceExtractor.setMandatoryPaksToExtract(MANDATORY_PAK_FILES);
         PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX);
     }
 
 }