GitLab

This reverts commit 5f2e9a96.

Reason for revert: gclient sync fails with the following error:

  ________ running '/usr/bin/python src/build/util/lastchange.py -o src/build/util/LASTCHANGE' in '/mnt/sdd/chrome'
  ERROR:root:Failed to get version info: %s

Original change's description:
> Reland: "Add --merge-base-ref option to lastchange.py"
> 
> Reland commit f4f6c5ff
> Revert was 172ccc05
> 
> The previous attempt at a reland changed FetchGitRevision
> which caused breakage when
> chrome/test/chromedriver/embed_version_in_cpp.py attempted to call this
> function. https://crrev.com/c/1459921 was recently merged which
> completely removed embed_version_in_cpp.py which should allow
> this change to re-land without modification from the previous
> attempt at a reland.
> 
> Change-Id: I0dbd7436938ae27167a9381415277d95d0d8312f
> Bug: 917159
> Reviewed-on: https://chromium-review.googlesource.com/c/1460454
> Reviewed-by: Dirk Pranke <dpranke@chromium.org>
> Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>
> Commit-Queue: Eli Ribble <eliribble@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#633730}

TBR=dpranke@chromium.org,tandrii@chromium.org,eliribble@chromium.org

Change-Id: Ia644ba3b8fe50b38fec26959a298f0d269fa54c9
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 917159
Reviewed-on: https://chromium-review.googlesource.com/c/1479950Reviewed-by: Maksim Ivanov <emaxx@chromium.org>
Commit-Queue: Maksim Ivanov <emaxx@chromium.org>
Cr-Commit-Position: refs/heads/master@{#633886}