Remove redundant field initialization in Java code.

chrome/android/java/src/org/chromium/chrome/browser/partnerbookmarks/PartnerBookmarksReader.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.partnerbookmarks;
 
 import android.content.Context;
 import android.os.AsyncTask;
 import android.util.Log;
 
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.Iterator;
 import java.util.LinkedHashMap;
 
 /**
  * Reads bookmarks from the partner content provider (if any).
 */
 public class PartnerBookmarksReader {
     private static final String TAG = "PartnerBookmarksReader";
 
-    private static boolean sInitialized = false;
-    private static boolean sForceDisableEditing = false;
+    private static boolean sInitialized;
+    private static boolean sForceDisableEditing;
 
     /** Root bookmark id reserved for the implied root of the bookmarks */
     static final long ROOT_FOLDER_ID = 0;
 
     /** ID used to indicate an invalid bookmark node. */
     static final long INVALID_BOOKMARK_ID = -1;
 
     // JNI c++ pointer
-    private long mNativePartnerBookmarksReader = 0;
+    private long mNativePartnerBookmarksReader;
 
     /** The context (used to get a ContentResolver) */
     protected Context mContext;
 
     // TODO(aruslan): Move it out to a separate class that defines
     // a partner bookmarks provider contract, see http://b/6399404
     /** Object defining a partner bookmark. For this package only. */
     static class Bookmark {
         // To be provided by the bookmark extractors.
         /** Local id of the read bookmark */
@@ skipping 220 matching lines @@
     // JNI
     private native long nativeInit();
     private native void nativeReset(long nativePartnerBookmarksReader);
     private native void nativeDestroy(long nativePartnerBookmarksReader);
     private native long nativeAddPartnerBookmark(long nativePartnerBookmarksReader,
             String url, String title, boolean isFolder, long parentId,
             byte[] favicon, byte[] touchicon);
     private native void nativePartnerBookmarksCreationComplete(long nativePartnerBookmarksReader);
     private static native void nativeDisablePartnerBookmarksEditing();
 }