am 7f9e9012: Merge "RingtoneManager: query results depend on caller permission" into mnc-dev

import android.app.Activity;

import android.content.ContentUris;

import android.content.Context;

import android.content.pm.PackageManager;

import android.database.Cursor;

import android.net.Uri;

import android.os.Environment;

import android.os.Process;

import android.provider.MediaStore;

import android.provider.Settings;

import android.provider.Settings.System;

     * If {@link RingtoneManager#RingtoneManager(Activity)} was not used, the

     * caller should manage the returned cursor through its activity's life

     * cycle to prevent leaking the cursor.

     * <p>

     * Note that the list of ringtones available will differ depending on whether the caller

     * has the {@link android.Manifest.permission#READ_EXTERNAL_STORAGE} permission.

     *

     * @return A {@link Cursor} of all the ringtones available.

     * @see #ID_COLUMN_INDEX

    /**

     * Returns a valid ringtone URI. No guarantees on which it returns. If it

     * cannot find one, returns null.

     * cannot find one, returns null. If it can only find one on external storage and the caller

     * doesn't have the {@link android.Manifest.permission#READ_EXTERNAL_STORAGE} permission,

     * returns null.

     *

     * @param context The context to use for querying.

     * @return A ringtone URI, or null if one cannot be found.

    }

    private Cursor getMediaRingtones() {

        if (PackageManager.PERMISSION_GRANTED != mContext.checkPermission(

                android.Manifest.permission.READ_EXTERNAL_STORAGE,

                Process.myPid(), Process.myUid())) {

            Log.w(TAG, "No READ_EXTERNAL_STORAGE permission, ignoring ringtones on ext storage");

            return null;

        }

         // Get the external media cursor. First check to see if it is mounted.

        final String status = Environment.getExternalStorageState();