Merge "Add some comment to MediaRecorder.stop() about the stop() failure (-1007)"

    /**

     * Stops recording. Call this after start(). Once recording is stopped,

     * you will have to configure it again as if it has just been constructed.

     * Note that a RuntimeException is intentionally thrown to the

     * application, if no valid audio/video data has been received when stop()

     * is called. This happens if stop() is called immediately after

     * start(). The failure lets the application take action accordingly to

     * clean up the output file (delete the output file, for instance), since

     * the output file is not properly constructed when this happens.

     *

     * @throws IllegalStateException if it is called before start()

     */