Minor Refactoring only: no functional change

- organizing imports
- remove redundant modifiers on LauncherCallback interface
- fix typos

Change-Id: I61eb985cac7c1379b6b804a67d4f234386d3d1b4
diff --git a/src/com/android/launcher3/PromiseAppInfo.java b/src/com/android/launcher3/PromiseAppInfo.java
index 1749dde..07515d0 100644
--- a/src/com/android/launcher3/PromiseAppInfo.java
+++ b/src/com/android/launcher3/PromiseAppInfo.java
@@ -40,7 +40,7 @@
         ShortcutInfo shortcut = new ShortcutInfo(this);
         shortcut.setInstallProgress(level);
         // We need to update the component name when the apk is installed
-        shortcut.status |= ShortcutInfo.FLAG_AUTOINTALL_ICON;
+        shortcut.status |= ShortcutInfo.FLAG_AUTOINSTALL_ICON;
         // Since the user is manually placing it on homescreen, it should not be auto-removed later
         shortcut.status |= ShortcutInfo.FLAG_RESTORE_STARTED;
         return shortcut;