Remove redundant field initialization in Java code.

chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java

 // Copyright 2015 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;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.app.Activity;
 import android.app.ActivityManager;
@@ skipping 189 matching lines @@
     private LayoutManagerChrome mLayoutManager;
 
     private ViewGroup mContentContainer;
 
     private ToolbarControlContainer mControlContainer;
 
     private TabModelSelectorImpl mTabModelSelectorImpl;
     private TabModelSelectorTabObserver mTabModelSelectorTabObserver;
     private TabModelSelectorTabModelObserver mTabModelObserver;
 
-    private boolean mUIInitialized = false;
+    private boolean mUIInitialized;
 
-    private boolean mIsOnFirstRun = false;
+    private boolean mIsOnFirstRun;
     private Boolean mMergeTabsOnResume;
 
     private Boolean mIsAccessibilityEnabled;
 
     private LocaleManager mLocaleManager;
 
     /**
      * Keeps track of whether or not a specific tab was created based on the startup intent.
      */
-    private boolean mCreatedTabOnStartup = false;
+    private boolean mCreatedTabOnStartup;
 
     // Whether or not chrome was launched with an intent to open a tab.
-    private boolean mIntentWithEffect = false;
+    private boolean mIntentWithEffect;
 
     // Time at which an intent was received and handled.
-    private long mIntentHandlingTimeMs = 0;
+    private long mIntentHandlingTimeMs;
 
     private VrShellDelegate mVrShellDelegate;
 
     private class TabbedAssistStatusHandler extends AssistStatusHandler {
         public TabbedAssistStatusHandler(Activity activity) {
             super(activity);
         }
 
         @Override
         public boolean isAssistSupported() {
@@ skipping 1474 matching lines @@
 
         ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
         for (AppTask task : manager.getAppTasks()) {
             RecentTaskInfo info = DocumentUtils.getTaskInfoFromTask(task);
             if (info == null) continue;
             if (info.id == sMergedInstanceTaskId) return true;
         }
         return false;
     }
 }