[Custom Tabs] Implement Bottombar

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

Index: chrome/android/java/res/layout/custom_tabs_bottombar.xml
diff --git a/chrome/android/java/res/layout/divider_preference.xml b/chrome/android/java/res/layout/custom_tabs_bottombar.xml
similarity index 53%
copy from chrome/android/java/res/layout/divider_preference.xml
copy to chrome/android/java/res/layout/custom_tabs_bottombar.xml
index 279ef8bda08bfc1a2760924489b200738ff34bc3..3651d62436d744729b7c52b3bec1020199f7e78d 100644
--- a/chrome/android/java/res/layout/divider_preference.xml
+++ b/chrome/android/java/res/layout/custom_tabs_bottombar.xml
@@ -2,8 +2,9 @@
 <!-- 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. -->
-
-<View xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/bottombar"
     android:layout_width="match_parent"
-    android:layout_height="1dp"
-    android:background="#E0E0E0" />
+    android:layout_height="@dimen/toolbar_height_no_shadow"
+    android:orientation="horizontal" >
+</LinearLayout>