Add theme aware key popup preview animation

Bug: 15678343
Change-Id: I26e4d292deab37724387cc9ebc03033fcd698c60
diff --git a/java/res/values/themes-lxx-light.xml b/java/res/values/themes-lxx-light.xml
index b3ced80..dca6df7 100644
--- a/java/res/values/themes-lxx-light.xml
+++ b/java/res/values/themes-lxx-light.xml
@@ -59,6 +59,8 @@
     >
         <item name="keyPreviewBackground">@drawable/keyboard_key_feedback_lxx_light</item>
         <item name="keyPreviewOffset">@dimen/config_key_preview_offset_holo</item>
+        <item name="keyPreviewShowUpAnimator">@anim/key_preview_show_up_lxx</item>
+        <item name="keyPreviewDismissAnimator">@anim/key_preview_dismiss_lxx</item>
         <item name="gestureFloatingPreviewTextColor">@color/auto_correct_color_lxx_light</item>
         <item name="gestureFloatingPreviewColor">@color/gesture_floating_preview_color_lxx_light</item>
         <item name="gestureTrailColor">@color/gesture_trail_color_lxx_light</item>