AccessibilityTabModelWrapper should call notifyDataSetChanged() when newTab is created

chrome/android/java/src/org/chromium/chrome/browser/widget/accessibility/AccessibilityTabModelWrapper.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.widget.accessibility;
 
 import android.content.Context;
 import android.util.AttributeSet;
 import android.view.View;
 import android.widget.ImageButton;
@@ skipping 21 matching lines @@
     private TabModelSelector.ChangeListener mTabModelChangeListener =
             new TabModelSelector.ChangeListener() {
 
         @Override
         public void onChange() {
             getAdapter().notifyDataSetChanged();
         }
 
         @Override
         public void onNewTabCreated(Tab tab) {
+            getAdapter().notifyDataSetChanged();
         }
     };
 
     // TODO(bauerb): Use View#isAttachedToWindow() as soon as we are guaranteed
     // to run against API version 19.
     private boolean mIsAttachedToWindow;
 
     private class ButtonOnClickListener implements View.OnClickListener {
         private final boolean mIncognito;
 
@@ skipping 100 matching lines @@
 
     @Override
     protected void onAttachedToWindow() {
         mTabModelSelector.registerChangeListener(mTabModelChangeListener);
         mIsAttachedToWindow = true;
         super.onAttachedToWindow();
     }
 
     @Override
     protected void onDetachedFromWindow() {
-        mTabModelSelector.unregisterChangeListener(mTabModelChangeListener);
         mIsAttachedToWindow = false;
         super.onDetachedFromWindow();
     }
 }