Sample failure: https://uberchromegw.corp.google.com/i/official.android/builders/official-arm/builds/1086

|14:37:51   echo 'chrome: '
|14:37:51   echo 'chrome_modern: 283900751'
|14:37:51   echo 'monochrome: 283900752'
|14:37:51   archive_files chrome-signed/android-B0urB0N/54.0.2839.7/arm_64 version_codes.txt
|14:37:51   local FILES_TO_COPY=version_codes.txt
|14:37:51   '[' -n '' ']'
|14:37:51   local OUT_DIR=gs://chrome-signed/android-B0urB0N/54.0.2839.7/arm_64
|14:37:51   local SCRIPT_ROOT=/b/build/scripts
|14:37:51   local GS_UTIL=/b/build/scripts/slave/gsutil
|14:37:51   '[' '!' -x /b/build/scripts/slave/gsutil ']'
|14:37:51   for file in '$FILES_TO_COPY'
||14:37:51   basename version_codes.txt
|14:37:51   FILE_GS_PATH=gs://chrome-signed/android-B0urB0N/54.0.2839.7/arm_64/version_codes.txt
|14:37:51   /b/build/scripts/slave/gsutil cp version_codes.txt gs://chrome-signed/android-B0urB0N/54.0.2839.7/arm_64/version_codes.txt
Copying file://version_codes.txt [Content-Type=text/plain]...
Uploading   ...oid-B0urB0N/54.0.2839.7/arm_64/version_codes.txt: 0 B/56 B    
Uploading   ...oid-B0urB0N/54.0.2839.7/arm_64/version_codes.txt: 56 B/56 B    
AccessDeniedException: 403 Forbidden