const golang.org/x/net/http2.transportDefaultConnFlow
2 uses
golang.org/x/net/http2 (current package)
config.go#L103: setDefault(&conf.MaxUploadBufferPerConnection, initialWindowSize, math.MaxInt32, transportDefaultConnFlow)
transport.go#L43: transportDefaultConnFlow = 1 << 30
The pages are generated with Golds v0.7.6. (GOOS=linux GOARCH=amd64)