Chromium change: https://chromium.googlesource.com/chromium/src.git/+/c6590bf2684410927423ef850bd0c74973ecc315 commit c6590bf2684410927423ef850bd0c74973ecc315 Author: dpapad <dpapad@chromium.org> Date: Wed Jan 6 09:18:00 2021 +0000 WebUI: Move optimize_webui.py related files to c/b/r/tools. Also fix new PRESUBMIT warning about TESTONLY_AND_VISIBILITY in optimize_webui.gni. Bug: None