Remove redundant field initialization in Java code.

base/android/java/src/org/chromium/base/ThreadUtils.java

 // Copyright 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.base;
 
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Process;
 
 import org.chromium.base.annotations.CalledByNative;
 
 import java.util.concurrent.Callable;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.FutureTask;
 
 /**
  * Helper methods to deal with threading related tasks.
  */
 public class ThreadUtils {
 
     private static final Object sLock = new Object();
 
-    private static boolean sWillOverride = false;
+    private static boolean sWillOverride;
 
-    private static Handler sUiThreadHandler = null;
+    private static Handler sUiThreadHandler;
 
     public static void setWillOverrideUiThread() {
         synchronized (sLock) {
             sWillOverride = true;
         }
     }
 
     @VisibleForTesting
     public static void setUiThread(Looper looper) {
         synchronized (sLock) {
@@ skipping 179 matching lines @@
     /**
      * Checks whether Thread priority is THREAD_PRIORITY_AUDIO or not.
      * @param tid Thread id.
      * @return true for THREAD_PRIORITY_AUDIO and false otherwise.
      */
     @CalledByNative
     private static boolean isThreadPriorityAudio(int tid) {
         return Process.getThreadPriority(tid) == Process.THREAD_PRIORITY_AUDIO;
     }
 }