Merge "Clean stale entries when deleting files." into mnc-dr-dev

import android.provider.DocumentsContract.Document;

import android.provider.DocumentsContract.Root;

import android.provider.DocumentsProvider;

import android.provider.MediaStore;

import android.text.TextUtils;

import android.util.ArrayMap;

import android.util.DebugUtils;

    @Override

    public void deleteDocument(String docId) throws FileNotFoundException {

        final File file = getFileForDocId(docId);

        if (file.isDirectory()) {

        final boolean isDirectory = file.isDirectory();

        if (isDirectory) {

            FileUtils.deleteContents(file);

        }

        if (!file.delete()) {

            throw new IllegalStateException("Failed to delete " + file);

        }

        final ContentResolver resolver = getContext().getContentResolver();

        final Uri externalUri = MediaStore.Files.getContentUri("external");

        // Remove media store entries for any files inside this directory, using

        // path prefix match. Logic borrowed from MtpDatabase.

        if (isDirectory) {

            final String path = file.getAbsolutePath() + "/";

            resolver.delete(externalUri,

                    "_data LIKE ?1 AND lower(substr(_data,1,?2))=lower(?3)",

                    new String[] { path + "%", Integer.toString(path.length()), path });

        }

        // Remove media store entry for this exact file.

        final String path = file.getAbsolutePath();

        resolver.delete(externalUri,

                "_data LIKE ?1 AND lower(_data)=lower(?2)",

                new String[] { path, path });

    }

    @Override