Use system Xcode on Mac instead of the hermetic toolchain which is now the default in Chromium. WebRTC needs the 10.12 SDK to compile successfully, which is not availble in the hermetic toolchain Chromium is rolling out to Googlers. Change log:1a6cf4da7c..f1e2718a3fFull diff:1a6cf4da7c..f1e2718a3fNo dependencies changed. No update to Clang. TBR=ehmaldonado@webrtc.org BUG=webrtc:6700 Review-Url: https://codereview.webrtc.org/2496113002 Cr-Commit-Position: refs/heads/master@{#15057}
Build overrides in GN
This directory is used to allow us to customize variables that differ between WebRTC being built as standalone and as a part of Chromium.
There's another build_overrides in Chromium that needs to contain the same set of files with the same set of variables (but with different values).