Add option to enable personalization dictionaries.

Bug: 11757851

Change-Id: I4872c10793d4fd55c0bd9e5bc4650925de6d2c1d
diff --git a/java/res/xml/prefs.xml b/java/res/xml/prefs.xml
index bf3b623..4f7c9f0 100644
--- a/java/res/xml/prefs.xml
+++ b/java/res/xml/prefs.xml
@@ -134,6 +134,12 @@
                 android:persistent="true"
                 android:defaultValue="true" />
             <CheckBoxPreference
+                android:key="pref_key_use_personalized_dicts"
+                android:title="@string/use_personalized_dicts"
+                android:summary="@string/use_personalized_dicts_summary"
+                android:persistent="true"
+                android:defaultValue="true" />
+            <CheckBoxPreference
                 android:key="pref_key_use_double_space_period"
                 android:title="@string/use_double_space_period"
                 android:summary="@string/use_double_space_period_summary"