Merge "Register change Uri and notify changes in bugreportServices."

     */

    private void onBugreportFinished(int id, Intent intent) {

        final File bugreportFile = getFileExtra(intent, EXTRA_BUGREPORT);

        // Since BugreportProvider and BugreportProgressService aren't tightly coupled,

        // we need to make sure they are explicitly tied to a single unique notification URI

        // so that the service can alert the provider of changes it has done (ie. new bug

        // reports)

        // See { @link Cursor#setNotificationUri } and {@link ContentResolver#notifyChanges }

        final Uri notificationUri = BugreportStorageProvider.getNotificationUri();

        mContext.getContentResolver().notifyChange(notificationUri, null, false);

        if (bugreportFile == null) {

            // Should never happen, dumpstate always set the file.

            Log.wtf(TAG, "Missing " + EXTRA_BUGREPORT + " on intent " + intent);

import android.database.Cursor;

import android.database.MatrixCursor;

import android.database.MatrixCursor.RowBuilder;

import android.net.Uri;

import android.os.CancellationSignal;

import android.os.FileUtils;

import android.os.ParcelFileDescriptor;

import android.provider.DocumentsContract;

import android.provider.DocumentsContract.Document;

import android.provider.DocumentsContract.Root;

import android.provider.DocumentsProvider;

import java.io.FileNotFoundException;

public class BugreportStorageProvider extends DocumentsProvider {

    private static final String AUTHORITY = "com.android.shell.documents";

    private static final String DOC_ID_ROOT = "bugreport";

    private static final String[] DEFAULT_ROOT_PROJECTION = new String[] {

                for (File file : files) {

                    addFileRow(result, file);

                }

                result.setNotificationUri(getContext().getContentResolver(), getNotificationUri());

            }

        }

        return result;

        }

    }

    // This is used by BugreportProgressService so that the notification uri shared by

    // BugreportProgressService and BugreportStorageProvider are guaranteed the same and unique

    protected static Uri getNotificationUri() {

      return DocumentsContract.buildChildDocumentsUri(AUTHORITY, DOC_ID_ROOT);

    }

    private static String[] resolveRootProjection(String[] projection) {

        return projection != null ? projection : DEFAULT_ROOT_PROJECTION;

    }