[Home] Fix top-offset for native pages

chrome/android/java/res/layout/recent_tabs_page.xml

 <?xml version="1.0" encoding="utf-8"?>
 <!-- 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. -->
 
 <!-- This single-child FrameLayout is needed for its top padding. -->
 <FrameLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:paddingTop="@dimen/tab_strip_height" >
 
     <org.chromium.chrome.browser.ntp.NativePageRootFrameLayout
+        android:id="@+id/recent_tabs_root"
         android:layout_height="match_parent"
         android:layout_width="match_parent"
         android:paddingTop="@dimen/toolbar_height_no_shadow"
         android:background="@color/ntp_bg"
         android:focusable="true"
         android:focusableInTouchMode="true" >
 
         <org.chromium.chrome.browser.ntp.RecentTabsExpandableListView
             android:id="@+id/odp_listview"
             android:layout_height="match_parent"
             android:layout_width="match_parent"
             android:cacheColorHint="@color/ntp_bg"
             android:childDivider="@null"
             android:divider="@null"
             android:listSelector="@android:color/transparent"
             android:scrollbarStyle="outsideOverlay" />
 
     </org.chromium.chrome.browser.ntp.NativePageRootFrameLayout>
 </FrameLayout>