Cef3 CefCookieManager的正确用法？

研究过CEF3的大牛们？怎样使用CefCookieManager::CreateManager来为浏览器实例分配单独的CookieManager?
我本来以为很简单：
首先生成一个CefRequestContextHandler,重载GetCookieManager,象这样：

 class WXRequestContextHandler :public CefRequestContextHandler
{
public:
    WXRequestContextHandler(){};
    ~WXRequestContextHandler(){};
    CefRefPtr<CefCookieManager> GetCookieManager() OVERRIDE{

            return CefCookieManager::CreateManager("F:\\CefCookie", FALSE)
    }
private:
    // Include the default reference counting implementation.
    IMPLEMENT_REFCOUNTING(WXRequestContextHandler);
};

然后用CefRequestContext::CreateContext来创建一个CefRequestContext实例。
像这样：

CefRefPtr rc = CefRequestContext::CreateContext(new WXRequestContextHandler());

然后创建BROWSER：

 CefBrowserHost::CreateBrowser(window_info, handler.get(), url,
                                browser_settings, rc);

结果一运行代码就出现EXCEPTION 访问冲突。只有getCookieManager返回NULL
才正常

我想肯定是我的用法错了，那么正确的用法是什么？求指教。
我测试代码是用的CEF3下载包中的cefSimple应用程序，只改了两行代码：

 void SimpleApp::OnContextInitialized() {
  REQUIRE_UI_THREAD();

  // Information used when creating the native window.
  CefWindowInfo window_info;

#if defined(OS_WIN)
  // On Windows we need to specify certain flags that will be passed to
  // CreateWindowEx().
  window_info.SetAsPopup(NULL, "cefsimple");
#endif

  // SimpleHandler implements browser-level callbacks.
  CefRefPtr<SimpleHandler> handler(new SimpleHandler());

  // Specify CEF browser settings here.
  CefBrowserSettings browser_settings;

  std::string url;

  // Check if a "--url=" value was provided via the command-line. If so, use
  // that instead of the default URL.
  CefRefPtr<CefCommandLine> command_line =
      CefCommandLine::GetGlobalCommandLine();
  url = command_line->GetSwitchValue("url");
  if (url.empty())
    url = "http://www.google.com";

  CefRefPtr<CefRequestContext> rc = CefRequestContext::CreateContext(new WXRequestContextHandler());

  // Create the first browser window.
  CefBrowserHost::CreateBrowser(window_info, handler.get(), url,
                                browser_settings, rc);
}

我是用的CEF3.175，VS2013,WIN7。

问题解决了。
答案
有遇到同样问题的兄弟们可以参考下

怎么解决的也没说, 参考什么呢?