Instead switch to specific getters, or methods only defined on specific implementations rather than part of the public API. Once uses are removed from Chromium, I'll mark GetHeader() deprecated and eventually remove it. Bug: chromium:1456628 Change-Id: I19b80489b3a0322c201e24994494cfbb742ee13e Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/309780 Commit-Queue: Tony Herre <herre@google.com> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/main@{#40344}