BTW, and I'm sure you know this, that this fails w/ trunk:
% make
Making all in mod_http2
CC mod_http2_la-h2_alt_svc.lo
CC mod_http2_la-h2_bucket_beam.lo
CC mod_http2_la-h2_bucket_eos.lo
CC mod_http2_la-h2_config.lo
CC mod_http2_la-h2_conn.lo
h2_conn.c:311:8: error: no member named 'data_in_input_filters' in 'struct
conn_rec'; did you mean 'clogging_input_filters'?
c->data_in_input_filters = 0;
^~~~~~~~~~~~~~~~~~~~~
clogging_input_filters
/usr/local2/apache2/include/httpd.h:1178:18: note: 'clogging_input_filters'
declared here
unsigned int clogging_input_filters:1;
^
h2_conn.c:312:8: error: no member named 'data_in_output_filters' in 'struct
conn_rec'
c->data_in_output_filters = 0;
~ ^
2 errors generated.