[Bookmarks] Refactor search view to use SelectableListLayout paradigm

chrome/android/java/res/layout-sw720dp/bookmark_main.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. -->
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="horizontal" >
 
     <org.chromium.chrome.browser.bookmarks.BookmarkDrawerListView
         android:id="@+id/bookmark_drawer_list"
         android:layout_width="256dp"
         android:layout_height="match_parent"
         android:layout_gravity="start"
         android:background="@android:color/white"
         android:choiceMode="singleChoice"
         android:divider="@null"
         android:dividerHeight="0dp" />
 
-    <ViewSwitcher
-        android:id="@+id/bookmark_view_switcher"
+    <org.chromium.chrome.browser.widget.selection.SelectableListLayout
+        android:id="@+id/selectable_list"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:inAnimation="@android:anim/fade_in"
-        android:outAnimation="@android:anim/fade_out" >
-
-        <org.chromium.chrome.browser.widget.selection.SelectableListLayout
-            android:id="@+id/selectable_list"
-            android:layout_width="match_parent"
-            android:layout_height="match_parent"
-            android:background="@android:color/white" />
-
-        <include layout="@layout/bookmark_search" />
-    </ViewSwitcher>
+        android:background="@android:color/white" />
 
 </LinearLayout>