Add landscape specs for Data Reduction Proxy promo

chrome/android/java/res/layout/data_reduction_promo_screen.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.widget.PaddedFrameLayout
+<org.chromium.chrome.browser.preferences.datareduction.DataReductionPromoView
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:chrome="http://schemas.android.com/apk/res-auto"
-    android:background="#c000"
-    chrome:maxChildHeight="@dimen/data_reduction_promo_screen_height"
-    chrome:maxChildWidth="@dimen/data_reduction_promo_screen_width">
+    android:background="#c000" >
 
     <ScrollView
         android:layout_height="match_parent"
         android:layout_width="match_parent"
         android:fillViewport="true">
 
         <RelativeLayout
             android:layout_height="wrap_content"
             android:layout_width="match_parent"
             android:background="#FFFF" >
 
             <org.chromium.chrome.browser.widget.TintedImageButton
                 android:id="@+id/close_button"
                 android:layout_height="56dp"
                 android:layout_width="56dp"
                 android:layout_alignParentEnd="true"
                 android:layout_alignParentTop="true"
                 android:background="?android:attr/selectableItemBackground"
                 android:contentDescription="@string/close"
                 android:src="@drawable/btn_close" />
 
             <LinearLayout
-                android:id="@+id/data_reduction_promo_text"
+                android:id="@+id/data_reduction_promo_content"
                 android:layout_height="wrap_content"
                 android:layout_width="match_parent"
                 android:layout_below="@+id/close_button"
                 android:layout_marginTop="16dp"
-                android:orientation="vertical"
                 android:paddingEnd="24dp"
                 android:paddingStart="24dp" >
 
                 <ImageView
+                    android:id="@+id/data_reduction_illustration"
                     android:layout_height="wrap_content"
                     android:layout_width="wrap_content"
                     android:layout_gravity="center_horizontal"
-                    android:layout_marginBottom="@dimen/data_reduction_promo_illustration_margin_bottom"
                     android:adjustViewBounds="true"
                     android:contentDescription="@null"
                     android:src="@drawable/data_reduction_illustration" />
+                    
+                <LinearLayout
+                    android:id="@+id/text_wrapper"
+                    android:layout_height="wrap_content"
+                    android:layout_width="wrap_content"
+                    android:orientation="vertical" >
 
-                <TextView
-                    android:layout_height="wrap_content"
-                    android:layout_width="match_parent"
-                    android:layout_marginBottom="8dp"
-                    android:text="@string/data_reduction_promo_title"
-                    android:textColor="@color/default_text_color"
-                    android:textSize="@dimen/data_reduction_promo_title_text_size" />
+                    <TextView
+                        android:layout_height="wrap_content"
+                        android:layout_width="match_parent"
+                        android:layout_marginBottom="8dp"
+                        android:text="@string/data_reduction_promo_title"
+                        android:textColor="@color/default_text_color"
+                        android:textSize="@dimen/data_reduction_promo_title_text_size" />
 
-                <TextView
-                    android:layout_height="wrap_content"
-                    android:layout_width="match_parent"
-                    android:lineSpacingMultiplier="1.3"
-                    android:text="@string/data_reduction_promo_summary"
-                    android:textColor="#646464"
-                    android:textSize="@dimen/data_reduction_promo_normal_text_size" />
+                    <TextView
+                        android:layout_height="wrap_content"
+                        android:layout_width="match_parent"
+                        android:lineSpacingMultiplier="1.3"
+                        android:text="@string/data_reduction_promo_summary"
+                        android:textColor="#646464"
+                        android:textSize="@dimen/data_reduction_promo_normal_text_size" />
+                </LinearLayout>
             </LinearLayout>
 
             <FrameLayout
                 android:layout_height="wrap_content"
                 android:layout_width="match_parent"
                 android:layout_alignParentBottom="true"
-                android:layout_below="@id/data_reduction_promo_text" >
+                android:layout_below="@id/data_reduction_promo_content" >
 
                 <!-- The FrameLayout must have layout_below so that the buttons don't
                      overlap the text. This causes the FrameLayout to extend from
                      data_reduction_promo_text to the bottom of the RelativeLayout.
                      In order for the buttons to adjust their height when the screen
                      size causes multiple lines of text, but not be the size of the
                      empty space between the text and bottom of the promo we need 
                      this second LinearLayout. -->
                 <LinearLayout
                     android:layout_height="wrap_content"
@@ skipping 22 matching lines @@
                         android:elevation="0dp"
                         android:minHeight="40dp"
                         android:text="@string/data_reduction_enable_button"
                         android:textColor="#FFFFFF"
                         android:textSize="@dimen/data_reduction_promo_button_text_size"
                         chrome:buttonColor="@color/light_active_color" />
                 </LinearLayout>
             </FrameLayout>
         </RelativeLayout>
     </ScrollView>
-</org.chromium.chrome.browser.widget.PaddedFrameLayout>
+</org.chromium.chrome.browser.preferences.datareduction.DataReductionPromoView>