Decrease delay for closing folder on removal of an item (issue 11028310)

Change-Id: Ie5c094af8b0293e56bf016be5b4f4db05e7a9a05
diff --git a/src/com/android/launcher3/Folder.java b/src/com/android/launcher3/Folder.java
index 50e2000..bbe6af2 100644
--- a/src/com/android/launcher3/Folder.java
+++ b/src/com/android/launcher3/Folder.java
@@ -82,7 +82,7 @@
     private int mState = STATE_NONE;
     private static final int REORDER_ANIMATION_DURATION = 230;
     private static final int REORDER_DELAY = 250;
-    private static final int ON_EXIT_CLOSE_DELAY = 800;
+    private static final int ON_EXIT_CLOSE_DELAY = 400;
     private boolean mRearrangeOnClose = false;
     private FolderIcon mFolderIcon;
     private int mMaxCountX;