[Snackbar] Replace popup window with views

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 416 matching lines @@
         <item name="android:layout_height">match_parent</item>
     </style>
     <style name="PhysicalWebOptInStyle" parent="Theme.AppCompat.Light">
         <item name="android:windowBackground">@android:color/white</item>
         <item name="windowNoTitle">true</item>
         <item name="windowActionBar">false</item>
         <item name="android:windowContentOverlay">@null</item>
     </style>
 
     <!-- Misc styles -->
-    <style name="SnackbarAnimation">
-        <item name="android:windowEnterAnimation">@anim/snackbar_in</item>
-        <item name="android:windowExitAnimation">@anim/snackbar_out</item>
-    </style>
-    <style name="SnackbarAnimationWithKeyboard">
-        <item name="android:windowEnterAnimation">@anim/snackbar_in_with_keyboard</item>
-        <item name="android:windowExitAnimation">@anim/snackbar_out</item>
-    </style>
     <style name="LocationBarButton">
         <item name="android:background">@null</item>
     </style>
     <style name="LocationBarMenuButton" parent="LocationBarButton">
         <item name="android:layout_height">match_parent</item>
         <item name="android:layout_width">match_parent</item>
     </style>
     <style name="ToolbarButton">
         <item name="android:background">?attr/selectableItemBackground</item>
         <item name="android:layout_width">48dp</item>
         <item name="android:layout_height">56dp</item>
         <item name="android:scaleType">center</item>
     </style>
     <style name="ToolbarMenuButtonPhone" parent="ToolbarButton">
         <item name="android:layout_gravity">top</item>
         <item name="android:layout_width">42dp</item>
         <item name="android:paddingEnd">4dp</item>
         <item name="android:background">@null</item>
     </style>
     <style name="ToolbarMenuButtonTablet" parent="ToolbarButton">
         <item name="android:layout_width">43dp</item>
         <item name="android:paddingEnd">3.5dp</item>
     </style>
     <style name="AppMenuItem">
         <item name="android:paddingStart">16dp</item>
         <item name="android:paddingEnd">16dp</item>
         <item name="android:background">?attr/listChoiceBackgroundIndicator</item>
     </style>
 </resources>