Launcher-side changes to support prediction bar.

Change-Id: Ib9974ad8888ad87137c774f9f531fae9d56b899a
diff --git a/src/com/android/launcher3/LauncherCallbacks.java b/src/com/android/launcher3/LauncherCallbacks.java
index 2fee81c..25c86c9 100644
--- a/src/com/android/launcher3/LauncherCallbacks.java
+++ b/src/com/android/launcher3/LauncherCallbacks.java
@@ -51,6 +51,7 @@
     public void finishBindingItems(final boolean upgradePath);
     public void onClickAllAppsButton(View v);
     public void onAllAppsShown();
+    public void onAllAppsHidden();
     public void bindAllApplications(ArrayList<AppInfo> apps);
     public void onClickFolderIcon(View v);
     public void onClickAppShortcut(View v);