Revert changes to keyboard_popup.xml for now.

This unexpectedly bloated keys in mini popup keyboard.

bug: 3048638
Change-Id: I2b717c9007ce7717bac514f1d8bcae1280130cf4
diff --git a/java/res/layout/keyboard_popup.xml b/java/res/layout/keyboard_popup.xml
index 8d64bab..c6594f6 100644
--- a/java/res/layout/keyboard_popup.xml
+++ b/java/res/layout/keyboard_popup.xml
@@ -32,7 +32,7 @@
             android:layout_alignParentBottom="true"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:background="@drawable/btn_keyboard_key_gingerbread_popup"
+            android:background="@drawable/keyboard_dark_background"
 
             latin:keyBackground="@drawable/btn_keyboard_key_gingerbread_popup"
             latin:keyHysteresisDistance="0dip"