More TabWidget and padding tweaks to match spec.

Also fix NPE in UserDictionarySettings.

Bug: 5184822
Change-Id: I082981c3bcf9b1e6575dcf9f42495a17f0ec8672
diff --git a/src/com/android/settings/DataUsageSummary.java b/src/com/android/settings/DataUsageSummary.java
index b99264f..a6170c7 100644
--- a/src/com/android/settings/DataUsageSummary.java
+++ b/src/com/android/settings/DataUsageSummary.java
@@ -43,6 +43,7 @@
 import static android.text.format.DateUtils.FORMAT_SHOW_DATE;
 import static android.text.format.Time.TIMEZONE_UTC;
 import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
+import static com.android.settings.Utils.prepareCustomPreferencesList;
 
 import android.animation.LayoutTransition;
 import android.app.AlertDialog;
@@ -272,6 +273,9 @@
         mTabWidget = (TabWidget) view.findViewById(android.R.id.tabs);
         mListView = (ListView) view.findViewById(android.R.id.list);
 
+        // adjust padding around tabwidget as needed
+        prepareCustomPreferencesList(container, view, mListView);
+
         mTabHost.setup();
         mTabHost.setOnTabChangedListener(mTabListener);