Fix deprecation warnings in remoting/android/

remoting/android/java/src/org/chromium/chromoting/Chromoting.java

 // Copyright 2013 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.chromoting;
 
 import android.accounts.Account;
 import android.accounts.AccountManager;
 import android.annotation.SuppressLint;
 import android.app.AlertDialog;
 import android.app.ProgressDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.os.Bundle;
 import android.provider.Settings;
 import android.support.v4.widget.DrawerLayout;
-import android.support.v7.app.ActionBarActivity;
 import android.support.v7.app.ActionBarDrawerToggle;
+import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.Toolbar;
 import android.text.TextUtils;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.Spinner;
 import android.widget.Toast;
 
 import org.chromium.chromoting.jni.JniInterface;
 
 import java.util.Arrays;
 import java.util.Locale;
 
 /**
  * The user interface for querying and displaying a user's host list from the directory server. It
  * also requests and renews authentication tokens using the system account manager.
  */
-public class Chromoting extends ActionBarActivity implements JniInterface.ConnectionListener,
+public class Chromoting extends AppCompatActivity implements JniInterface.ConnectionListener,
         AdapterView.OnItemSelectedListener, HostListLoader.Callback, View.OnClickListener {
     /** Only accounts of this type will be selectable for authentication. */
     private static final String ACCOUNT_TYPE = "com.google";
 
     /** Web page to be displayed in the Help screen when launched from this activity. */
     private static final String HELP_URL =
             "https://support.google.com/chrome/?p=mobile_crd_hostslist";
 
     /** Web page to be displayed when user triggers the hyperlink for setting up hosts. */
     private static final String HOST_SETUP_URL =
@@ skipping 486 matching lines @@
                 // Unreachable, but required by Google Java style and findbugs.
                 assert false : "Unreached";
         }
 
         if (dismissProgress && mProgressIndicator != null) {
             mProgressIndicator.dismiss();
             mProgressIndicator = null;
         }
     }
 }