-> rockot? I think this is "Add ARC++ Mojo support libs to chrome deployment"

https://chromium-review.googlesource.com/1066085

Failures started in

https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/chromeos-amd64-generic-rel/12767

The test step is experimental, so things stay "green" but show up in SoM. This may reflect a real regression.

Errors look like


03:40:22: INFO: Preparing device
<class 'chromite.lib.chrome_util.MissingPathError'>: /b/s/w/ir/out_amd64-generic/Release/libmojo_core_arc32.so does not exist and is required.
You can bypass this error with --sloppy.
Aborting copy...
Traceback (most recent call last):
  File "/b/s/w/ir/third_party/chromite/lib/parallel.py", line 442, in _Run
    self._task(*self._task_args, **self._task_kwargs)
  File "/b/s/w/ir/third_party/chromite/lib/parallel.py", line 654, in ReturnWrapper
    queue.put(fn())
  File "/b/s/w/ir/third_party/chromite/scripts/deploy_chrome.py", line 325, in _PrepareStagingDir
    self.copy_paths, self.chrome_dir)
  File "/b/s/w/ir/third_party/chromite/scripts/deploy_chrome.py", line 637, in _PrepareStagingDir
    strip_flags=strip_flags, copy_paths=copy_paths)
  File "/b/s/w/ir/third_party/chromite/lib/chrome_util.py", line 438, in StageChromeFromBuildDir
    copied_paths += copier.Copy(build_dir, staging_dir, p, sloppy=sloppy)
  File "/b/s/w/ir/third_party/chromite/lib/chrome_util.py", line 191, in Copy
    raise MissingPathError(msg)
MissingPathError: /b/s/w/ir/out_amd64-generic/Release/libmojo_core_arc32.so does not exist and is required.
You can bypass this error with --sloppy.
Aborting copy...

03:40:22: INFO: Testing connection to the device...
03:40:22: INFO: Shutting down Chrome...
03:40:23: INFO: SDK: Fetching gs://chromeos-image-archive/amd64-generic-full/R68-10709.0.0-b2598635/environment_chromeos-base_chromeos-chrome.tar.xz

cmd=['deploy_chrome', '--force', '--build-dir', 'out_amd64-generic/Release', '--process-timeout', '180', '--to', 'localhost', '--port', '9222', '--board', 'amd64-generic', '--cache-dir', '/b/s/w/ir/build/cros_cache']
03:40:26: DEBUG: Stop VM
03:40:26: INFO: Killing 5553.
03:40:26: INFO: RunCommand: kill -9 5553
03:40:26: INFO: Time elapsed 0:00:42.075460.

Yep, revert is pending. Sorry for the trouble!