Fix Data Saver settings preference crash on Lenovo Zuk devices

chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionStatsPreference.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionStatsPreference.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionStatsPreference.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionStatsPreference.java
index c19b4ca9aefebe59da416b9f78e04106c2d73e81..c9e429a5e68df3ddf945e46d856121b881e0d03b 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionStatsPreference.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionStatsPreference.java
@@ -12,7 +12,6 @@ import static org.chromium.third_party.android.datausagechart.ChartDataUsageView
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.preference.Preference;
-import android.preference.PreferenceCategory;
 import android.text.format.DateUtils;
 import android.text.format.Formatter;
 import android.util.AttributeSet;
@@ -27,9 +26,9 @@ import org.chromium.third_party.android.datausagechart.NetworkStatsHistory;
 import java.util.TimeZone;
 
 /**
- * Preference category used to display statistics on data reduction.
+ * Preference used to display statistics on data reduction.
  */
-public class DataReductionStatsPreference extends PreferenceCategory {
+public class DataReductionStatsPreference extends Preference {
     private NetworkStatsHistory mOriginalNetworkStatsHistory;
     private NetworkStatsHistory mReceivedNetworkStatsHistory;
 
@@ -51,14 +50,17 @@ public class DataReductionStatsPreference extends PreferenceCategory {
     public DataReductionStatsPreference(
             Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
+        setWidgetLayoutResource(R.layout.data_reduction_stats_layout);
     }
 
     public DataReductionStatsPreference(Context context, AttributeSet attrs) {
         super(context, attrs);
+        setWidgetLayoutResource(R.layout.data_reduction_stats_layout);
     }
 
     public DataReductionStatsPreference(Context context) {
         super(context);
+        setWidgetLayoutResource(R.layout.data_reduction_stats_layout);
     }
 
     /**
@@ -83,11 +85,6 @@ public class DataReductionStatsPreference extends PreferenceCategory {
     }
 
     @Override
-    protected boolean onPrepareAddPreference(Preference preference) {
-        return super.onPrepareAddPreference(preference);
-    }
-
-    @Override
     public boolean isEnabled() {
         return super.isEnabled();
     }