CefBrowserHostCloseBrowser Method

Request that the browser close. The JavaScript 'onbeforeunload' event will be fired. If |force_close| is false the event handler, if any, will be allowed to prompt the user and the user can optionally cancel the close. If |force_close| is true the prompt will not be displayed and the close will proceed. Results in a call to CefLifeSpanHandler::DoClose() if the event handler allows the close or if |force_close| is true. See CefLifeSpanHandler::DoClose() documentation for additional usage information.

public void CloseBrowser(
	bool forceClose = false
)