Remove redundant field initialization in Java code.

chrome/test/android/javatests/src/org/chromium/chrome/test/util/browser/tabmodel/MockTabModelSelector.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.test.util.browser.tabmodel;
 
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tabmodel.TabModel;
 import org.chromium.chrome.browser.tabmodel.TabModel.TabLaunchType;
 import org.chromium.chrome.browser.tabmodel.TabModelSelector;
 import org.chromium.chrome.browser.tabmodel.TabModelSelectorBase;
 import org.chromium.chrome.browser.tabmodel.TabModelUtils;
 import org.chromium.content_public.browser.LoadUrlParams;
 
 /**
  * Mock of a basic {@link TabModelSelector}. It supports 2 {@link TabModel}: standard and incognito.
  */
 public class MockTabModelSelector extends TabModelSelectorBase {
     // Offsetting the id compared to the index helps greatly when debugging.
     public static final int ID_OFFSET = 100000;
     public static final int INCOGNITO_ID_OFFSET = 200000;
-    private static int sCurTabOffset = 0;
+    private static int sCurTabOffset;
 
     public MockTabModelSelector(
             int tabCount, int incognitoTabCount, MockTabModel.MockTabModelDelegate delegate) {
         super();
         initialize(false, new MockTabModel(false, delegate), new MockTabModel(true, delegate));
         for (int i = 0; i < tabCount; i++) {
             addMockTab();
         }
         if (tabCount > 0) TabModelUtils.setIndex(getModelAt(0), 0);
 
@@ skipping 24 matching lines @@
     @Override
     public void closeAllTabs() {
         throw new UnsupportedOperationException();
     }
 
     @Override
     public int getTotalTabCount() {
         throw new UnsupportedOperationException();
     }
 }