Fix deprecation warnings in remoting/android/

remoting/android/java/src/org/chromium/chromoting/Desktop.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.annotation.SuppressLint;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.v7.app.ActionBarActivity;
+import android.support.v7.app.AppCompatActivity;
 import android.view.KeyCharacterMap;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
 
 import org.chromium.chromoting.jni.JniInterface;
 
 import java.util.Set;
 import java.util.TreeSet;
 
 /**
  * A simple screen that does nothing except display a DesktopView and notify it of rotations.
  */
-public class Desktop extends ActionBarActivity implements View.OnSystemUiVisibilityChangeListener {
+public class Desktop extends AppCompatActivity implements View.OnSystemUiVisibilityChangeListener {
     /** 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_connecthost";
 
     /** The surface that displays the remote host's desktop feed. */
     private DesktopView mRemoteHostDesktop;
 
     /** Set of pressed keys for which we've sent TextEvent. */
     private Set<Integer> mPressedTextKeys = new TreeSet<Integer>();
 
@@ skipping 268 matching lines @@
                 JniInterface.sendKeyEvent(KeyEvent.KEYCODE_SHIFT_LEFT, pressed);
                 JniInterface.sendKeyEvent(KeyEvent.KEYCODE_EQUALS, pressed);
                 return true;
 
             default:
                 // We try to send all other key codes to the host directly.
                 return JniInterface.sendKeyEvent(keyCode, pressed);
         }
     }
 }