[Android History] Add clear browsing data button and privacy disclaimers

chrome/android/java/res/values-v17/styles.xml

 <?xml version="1.0" encoding="utf-8"?>
 <!-- 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. -->
 
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Q: Why put style resources under values-v17/ ?
          A: Problem:
             1. paddingStart causes a crash on Galaxy Tab&Note b/8351339.
             2. So we wrote a build script(generate_v14_compatible_resources.py) to convert
@@ skipping 564 matching lines @@
         <item name="android:textStyle">bold</item>
     </style>
     <style name="NumberRollTextViewStyle">
         <item name="android:layout_width">wrap_content</item>
         <item name="android:layout_height">wrap_content</item>
         <item name="android:layout_gravity">center_vertical</item>
         <item name="android:singleLine">true</item>
         <item name="android:textColor">@android:color/white</item>
         <item name="android:textSize">20sp</item>
     </style>
+    <style name="PrivacyDisclaimerText">
+        <item name="android:layout_width">match_parent</item>
+        <item name="android:layout_height">wrap_content</item>
+        <item name="android:layout_marginTop">16dp</item>
+        <item name="android:paddingStart">16dp</item>
+        <item name="android:paddingEnd">16dp</item>
+        <item name="android:textSize">16sp</item>
+        <item name="android:visibility">gone</item>
+    </style>
 
     <!-- New tab page RecyclerView overscroll color -->
     <style name="NewTabPageRecyclerView">
         <item name="android:colorEdgeEffect">@color/google_grey_300</item>
     </style>
 </resources>