Playback progress bar.
Inheritance: IPlaybackProgressBar, IToolBoxTool
        /// <summary>
        /// Creates all our tools.
        /// </summary>
        /// <param name='toolboxLayoutDefinition' The layout of the toolbox />
        private void CreateTools(ToolboxLayoutDefinition toolboxLayoutDefinition)
        {
            this.playbackProgressBar = this.CreateProgressBar(toolboxLayoutDefinition.PlaybackTools.ProgressBar);
            this.AddTool(this.playbackProgressBar);

            this.speedGauge = this.CreateSpeedGauge(toolboxLayoutDefinition.PlaybackTools.SpeedGauge);
            this.AddTool(this.speedGauge);
        }