Fix crash in Storage app info when the corresponding app is uninstalled

in the background.

1. Move the handling for package removal from InstalledAppDetails to
AppInfoBase so that all app info subclass will now finish
correspondingly if the package is uninstalled.
2. In InstalledAppDetails, when handling package removal, will also
finish the app info fragment that it starts earlier.

Change-Id: Id741e7475414045040dd0797ff3bc63ac214f400
Fixes: 27774473

src/com/android/settings/Utils.java

@@ -515,7 +515,7 @@ public final class Utils extends com.android.settingslib.Utils {
         if (resultTo == null) {
             context.startActivity(intent);
         } else {
-            resultTo.startActivityForResult(intent, resultRequestCode);
+            resultTo.getActivity().startActivityForResult(intent, resultRequestCode);
         }
     }