
As we are planning to run the headful mode on CI to get performance data, running in headful mode does not necessary mean debugging. Add '--no-xvfb' to control if we do not want to start xvfb. Bug: 1517496 Change-Id: Ia00b2ee0de380c2c8a835d9bce5c9eb71993f57b Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5252105 Reviewed-by: Jonathan Lee <jonathanjlee@google.com> Commit-Queue: Weizhong Xia <weizhong@google.com> Cr-Commit-Position: refs/heads/main@{#1257627}