Find a bug when SDL_WINDOWEVENT_MINIMIZED the gpu flash is overflow.

[superowner]

I just set
if (e.window.event == SDL_WINDOWEVENT_MINIMIZED)
{
cef_renderer_flag = false;
}
else if (e.window.event == SDL_WINDOWEVENT_RESTORED)
{
cef_renderer_flag = true;
}...
...

   if (!cef_renderer_flag)
    {
        SDL_Delay(100);
        continue;
    }

then it's OK!