CefSettings settings = new CefSettings();

                settings.Locale = "zh-CN";

                settings.CefCommandLineArgs.Add("enable-media-stream", "");  //开启摄像头

                settings.CefCommandLineArgs.Add("enable-system-flash", "");  //flash

                settings.CefCommandLineArgs.Add("enable-speech-input", "");  //语音输入