Remove redundant field initialization in Java code.

chrome/android/java/src/org/chromium/chrome/browser/util/AccessibilityUtil.java

 // 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.
 
 package org.chromium.chrome.browser.util;
 
 import android.accessibilityservice.AccessibilityServiceInfo;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.net.Uri;
 import android.support.v7.app.AlertDialog;
 import android.view.accessibility.AccessibilityManager;
 
 import org.chromium.base.PackageUtils;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.chrome.R;
 
 import java.util.List;
 
 /**
  * Exposes information about the current accessibility state
  */
 public class AccessibilityUtil {
     // Whether we've already shown an alert that they have an old version of TalkBack running.
-    private static boolean sOldTalkBackVersionAlertShown = false;
+    private static boolean sOldTalkBackVersionAlertShown;
 
     // The link to download or update TalkBack from the Play Store.
     private static final String TALKBACK_MARKET_LINK =
             "market://search?q=pname:com.google.android.marvin.talkback";
 
     // The package name for TalkBack, an Android accessibility service.
     private static final String TALKBACK_PACKAGE_NAME =
             "com.google.android.marvin.talkback";
 
     // The minimum TalkBack version that we support. This is the version that shipped with
@@ skipping 68 matching lines @@
                         new DialogInterface.OnClickListener() {
                         @Override
                             public void onClick(DialogInterface dialog, int id) {
                                 // Do nothing, this alert is only shown once either way.
                             }
                         });
         AlertDialog dialog = builder.create();
         dialog.show();
     }
 }