Remove delay for key feedback bubble.

Most users seem to expect the feedback to show up right away. So
remove the delay before the bubble shows up.
diff --git a/core/java/android/inputmethodservice/KeyboardView.java b/core/java/android/inputmethodservice/KeyboardView.java
index dff7cae..9e966cd 100755
--- a/core/java/android/inputmethodservice/KeyboardView.java
+++ b/core/java/android/inputmethodservice/KeyboardView.java
@@ -163,8 +163,8 @@
     private static final int MSG_REPEAT = 3;
     private static final int MSG_LONGPRESS = 4;
 
-    private static final int DELAY_BEFORE_PREVIEW = 40;
-    private static final int DELAY_AFTER_PREVIEW = 60;
+    private static final int DELAY_BEFORE_PREVIEW = 0;
+    private static final int DELAY_AFTER_PREVIEW = 70;
     
     private int mVerticalCorrection;
     private int mProximityThreshold;