I want to publish an API for iSAC in webrtc/api/, and I want to use the class names Audio{De,En}coderIsac{Fix,Float}. BUG=webrtc:7835, webrtc:7841 Review-Url: https://codereview.webrtc.org/2996593002 Cr-Commit-Position: refs/heads/master@{#19381}