Set max_outbound_header_list_size_ when receiving SETTINGS_MAX_HEADER_LIST_SIZE. Also change max_outbound_header_list_size_ default value to numeric_limits::max, because the default value of this setting is unlimited both in Google QUIC [1] and in IETF QUIC [2]. [1] https://httpwg.org/specs/rfc7540.html#SettingValues [2] https://quicwg.org/base-drafts/draft-ietf-quic-http.html#name-defined-settings-parameters gfe-relnote: n/a (max_outbound_header_list_size_ is never used in production) PiperOrigin-RevId: 293124322 Change-Id: I12f4bceef90030905b7c294724936ec9e7c6dd1e