[Contextual Search] Fix Promo behavior.

chrome/android/java/res/layout/contextual_search_opt_out_promo.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. -->
 
 <org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchOptOutPromo
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:chrome="http://schemas.android.com/apk/res-auto"
     android:id="@+id/contextual_search_opt_out_promo"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:background="@drawable/contextual_search_promo_background"
     android:orientation="vertical">
 
     <!-- marginTop = 16dp - 9dp (margin above) -->
     <org.chromium.ui.widget.TextViewWithClickableSpans
         android:id="@+id/contextual_search_opt_out_text"
         android:color="@color/contextual_search_promo_text_color"
         android:layout_alignParentTop="true"
         android:layout_alignParentStart="true"
         android:layout_alignParentEnd="true"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginTop="7dp"
         android:layout_marginStart="16dp"
         android:layout_marginEnd="16dp"
         android:bufferType="spannable"
         android:textSize="16sp" />
 
-    <Button
+    <org.chromium.chrome.browser.widget.ButtonCompat
         android:id="@+id/contextual_search_got_it_button"
         android:layout_below="@id/contextual_search_opt_out_text"
         android:layout_alignParentEnd="true"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="end"
+        android:layout_marginTop="16dp"
         android:layout_marginEnd="16dp"
-        android:background="?attr/selectableItemBackground"
         android:fontFamily="sans-serif-medium"
         android:paddingStart="8dp"
         android:paddingEnd="8dp"
         android:text="@string/contextual_search_got_it_button"
         android:textAllCaps="true"
-        android:textColor="@color/light_active_color"
-        android:textSize="14sp" />
+        android:textColor="#FFF"
+        android:textSize="14sp"
+        chrome:buttonColor="#4285F4" />
 
     <Button
         android:id="@+id/contextual_search_no_thanks_button"
         android:layout_below="@id/contextual_search_opt_out_text"
         android:layout_toStartOf="@id/contextual_search_got_it_button"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="end"
+        android:layout_marginTop="16dp"
         android:layout_marginEnd="16dp"
-        android:background="?attr/selectableItemBackground"
         android:fontFamily="sans-serif-medium"
         android:paddingStart="8dp"
         android:paddingEnd="8dp"
         android:text="@string/contextual_search_no_thanks_button"
         android:textAllCaps="true"
         android:textColor="@color/light_active_color"
-        android:textSize="14sp" />
+        android:textSize="14sp"
+        style="@style/ButtonCompatBorderless" />
 
     <View
         android:layout_below="@id/contextual_search_got_it_button"
         android:layout_width="match_parent"
         android:layout_height="1px"
+        android:layout_marginTop="16dp"
         android:background="#c2c2c2" />
 
 </org.chromium.chrome.browser.compositor.bottombar.contextualsearch.ContextualSearchOptOutPromo>