NGX_SPDY_BUFFERED  650 src/http/ngx_http_spdy_filter_module.c             fc->buffered &= ~NGX_SPDY_BUFFERED;
NGX_SPDY_BUFFERED  934 src/http/ngx_http_spdy_filter_module.c         fc->buffered |= NGX_SPDY_BUFFERED;
NGX_SPDY_BUFFERED  939 src/http/ngx_http_spdy_filter_module.c     fc->buffered &= ~NGX_SPDY_BUFFERED;