
Renamed the new variant of EncodeInternal to EncodeImpl, so that subclasses implementing one of the EncodeInternal don't need to explicitly contain 'using AudioEncoder::EncodeInternal' to avoid their implementation hiding the other variant of EncodeInternal. This causes a warning (treated as an error) when building using GCC. Review URL: https://codereview.webrtc.org/1764583003 Cr-Commit-Position: refs/heads/master@{#11868}