Add new snackbar features to prepare for omnibox geolocation snackbar.

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

Index: chrome/android/java/res/layout/snack_bar.xml
diff --git a/chrome/android/java/res/layout/snack_bar.xml b/chrome/android/java/res/layout/snack_bar.xml
deleted file mode 100644
index 297917c38d44e71b657330adfe4ad1871ef8d9b6..0000000000000000000000000000000000000000
--- a/chrome/android/java/res/layout/snack_bar.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<?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:id="@+id/undobar"
-    android:layout_width="match_parent"
-    android:layout_height="@dimen/undo_bar_height"
-    android:background="#282C32"
-    android:orientation="horizontal" >
-
-    <org.chromium.chrome.browser.snackbar.TemplatePreservingTextView
-        android:id="@+id/undobar_message"
-        android:layout_width="0dp"
-        android:layout_height="wrap_content"
-        android:layout_gravity="start|center_vertical"
-        android:layout_marginStart="24dp"
-        android:layout_weight="1"
-        android:singleLine="true"
-        android:textAlignment="viewStart"
-        android:textColor="@android:color/white"
-        android:textSize="14sp" />
-
-    <TextView
-        android:id="@+id/undobar_button"
-        android:layout_width="wrap_content"
-        android:layout_height="match_parent"
-        android:fontFamily="sans-serif-medium"
-        android:gravity="center_vertical"
-        android:paddingEnd="24dp"
-        android:paddingStart="24dp"
-        android:text="@string/undo_bar_button_text"
-        android:textAllCaps="true"
-        android:textColor="@color/snack_bar_button_color"
-        android:textSize="14sp" />
-
-</LinearLayout>