Chromium uses gn gen --check, which doesn't like some of the includes
used in the new gn targets the fuzzers use. This breaks Chromium
libfuzzer compiles, for which there isn't yet a webrtc FYI bot.
I'm working on fixing the includes, at which point these can come back.
BUG=chromium:618901
NOTRY=true
Review-Url: https://codereview.webrtc.org/2053293002
Cr-Commit-Position: refs/heads/master@{#13098}