chore: chrome louncher WTF flags

Author: mhevery

scripts/perf_launch_chrome.sh

@@ -8,6 +8,7 @@ elif [[ "$platform" == 'Darwin' ]]; then
  --enable-memory-info \
  --enable-precise-memory-info \
  --enable-memory-benchmarking \
- --js-flags="--expose-gc" \
+ --js-flags="--expose-gc --allow-natives-syntax" \
+ --disable-web-security \
  --remote-debugging-port=9222`
 fi