After CEF3 75 version of Flash does not automatically play problem

//相关代码片段：

CefRefPtr<CefRequestContext> ClientHandler::GetRequestContext()
{
    if (!shared_request_context.get()) {
        shared_request_context = CefRequestContext::CreateContext(
            CefRequestContext::GetGlobalContext(), new ClientRequestContextHandler2);
    }

    CefString error;
    CefRefPtr<CefValue> value = CefValue::Create();
    value->SetInt(1);
    shared_request_context->SetPreference("profile.default_content_setting_values.plugins", value, error);

    return shared_request_context;
}

CefBrowserHost::CreateBrowser(window_info, this, sUrl, browser_settings, NULL, GetRequestContext());

Reference website: https://magpcss.org/ceforum/viewtopic.php?p=43395#p43395