tree be965bc68c1773159763a9ede69a333fa2c8bda3
parent 083b83b397f3df4383c29945f190cdae3c83e8d9
author QUICHE team <quiche-dev@google.com> 1779458844 -0700
committer Copybara-Service <copybara-worker@google.com> 1779458996 -0700

Add QUIC client support to support requesting server padding through an extension in the TLS handshake. This is to support the cert padding experiment for Chrome (see go/cert-padding-experiment-2026)

CL is a no-op for GFEs because there is no GFE server configuration that supports sending the server padding extension back in the TLS handshake, and there are no clients that support this extension. GFE changes (which will come in later CLs) are detailed in go/cert-padding-experiment-2026-gfe

PiperOrigin-RevId: 919658597