GitLab

This CL:
- Adds dependency from monochrome_public_apk_checker to
build/android:devil_chromium_py gn target
- Makes monochrome_apk_checker_test.py ignore the pathmap file if it does
not exist. In local testing no path map is generated for
SystemWebView.apk

BUG=1138758

Change-Id: Ie087fe20117c95fe0acadf35bb9dc06d1614164b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2485280Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Peter Kotwicz <pkotwicz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818921}