Merge "Add CancellationSignal support to file operations." into klp-dev

            SaveFragment.get(fm).setReplaceTarget(doc);

        } else if (mAction == ACTION_MANAGE) {

            // Open the document

            // TODO: trampoline activity for launching downloaded APKs

            final Intent intent = new Intent(Intent.ACTION_VIEW);

            intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

            intent.setData(doc.uri);