Ntp: tweak "all dismissed" spacing for latest mock.

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

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright 2016 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. -->
 
 <RelativeLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:chrome="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:padding="@dimen/snippets_padding_and_peeking_card_height">
 
     <ImageView
         android:id="@+id/image"
         android:layout_width="112dp"
         android:layout_height="112dp"
         android:layout_alignParentTop="true"
         android:layout_centerHorizontal="true"
-        android:layout_marginTop="8dp"
-        android:layout_marginBottom="8dp"
+        android:layout_marginTop="72dp"
+        android:layout_marginBottom="40dp"
         android:layout_marginStart="8dp"
         android:layout_marginEnd="8dp"
         android:src="@drawable/ntp_all_dismissed"
         android:contentDescription="@null"
         android:importantForAccessibility="no" />
 
     <org.chromium.ui.widget.TextViewWithLeading
         android:id="@+id/title_text"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
@@ skipping 18 matching lines @@
         android:textColor="@color/snippets_text_color"
         chrome:leading="20dp" />
 
     <Button
         android:id="@+id/action_button"
         style="@style/ButtonCompatBorderless"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_below="@id/body_text"
         android:layout_centerHorizontal="true"
-        android:layout_marginTop="16dp"
+        android:layout_marginTop="24dp"
         android:text="@string/ntp_all_dismissed_refresh"
         android:textAllCaps="true"
         android:textColor="@color/light_active_color"
         android:textSize="15sp" />
 
 </RelativeLayout>