Fall back to default keyboard theme

Bug: 17537884
Change-Id: I3452d6d4a5837c6b2d417c8d256c121df86131cc
diff --git a/java/res/values/keyboard-themes.xml b/java/res/values/keyboard-themes.xml
index 9d772c4..b0bae96 100644
--- a/java/res/values/keyboard-themes.xml
+++ b/java/res/values/keyboard-themes.xml
@@ -26,10 +26,10 @@
         <item>@string/keyboard_theme_holo_blue</item>
     </string-array>
     <!-- An element must be a keyboard theme id of {@link KeyboardTheme#THEME_ID_*}. -->
-    <string-array name="keyboard_theme_ids" translatable="false">
+    <integer-array name="keyboard_theme_ids" translatable="false">
         <item>3</item>
         <item>4</item>
         <item>2</item>
         <item>0</item>
-    </string-array>
+    </integer-array>
 </resources>