Remove redundant field initialization in Java code.

chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationPlatformBridge.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.notifications;
 
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.app.RemoteInput;
@@ skipping 61 matching lines @@
     private static final int[] EMPTY_VIBRATION_PATTERN = new int[0];
 
     private static NotificationPlatformBridge sInstance;
     private static NotificationManagerProxy sNotificationManagerOverride;
 
     private final long mNativeNotificationPlatformBridge;
 
     private final Context mAppContext;
     private final NotificationManagerProxy mNotificationManager;
 
-    private long mLastNotificationClickMs = 0L;
+    private long mLastNotificationClickMs;
 
     /**
      * Creates a new instance of the NotificationPlatformBridge.
      *
      * @param nativeNotificationPlatformBridge Instance of the NotificationPlatformBridgeAndroid
      *        class.
      */
     @CalledByNative
     private static NotificationPlatformBridge create(long nativeNotificationPlatformBridge) {
         if (sInstance != null) {
@@ skipping 624 matching lines @@
 
     private static native void nativeInitializeNotificationPlatformBridge();
 
     private native void nativeOnNotificationClicked(long nativeNotificationPlatformBridgeAndroid,
             String notificationId, String origin, String profileId, boolean incognito, String tag,
             String webApkPackage, int actionIndex, String reply);
     private native void nativeOnNotificationClosed(long nativeNotificationPlatformBridgeAndroid,
             String notificationId, String origin, String profileId, boolean incognito, String tag,
             boolean byUser);
 }