pref for html5 prefetch bandwidth management

Bug: 5218987
Change-Id: Ifeb9a1b3d71ac83b8ad94a8f31ed324ebd5d0fe7
diff --git a/res/xml/bandwidth_preferences.xml b/res/xml/bandwidth_preferences.xml
index bb1688e..9946b48 100644
--- a/res/xml/bandwidth_preferences.xml
+++ b/res/xml/bandwidth_preferences.xml
@@ -24,6 +24,14 @@
         android:entryValues="@array/pref_data_preload_values"
         android:dialogTitle="@string/pref_data_preload_dialogtitle" />
 
+    <ListPreference
+        android:key="link_prefetch_when"
+        android:title="@string/pref_link_prefetch_title"
+        android:summary="@string/pref_link_prefetch_summary"
+        android:entries="@array/pref_link_prefetch_choices"
+        android:entryValues="@array/pref_link_prefetch_values"
+        android:dialogTitle="@string/pref_link_prefetch_dialogtitle" />
+
     <CheckBoxPreference
         android:key="load_images"
         android:defaultValue="true"