Roll src/third_party/leveldatabase/src/ d177a0263..e9098a131 (3 commits)

https://chromium.googlesource.com/external/leveldb.git/+log/d177a0263cce..e9098a1311a1

$ git log d177a0263..e9098a131 --date=short --no-merges --format='%ad %ae %s'
2018-04-19 costan Cleanup SnapshotImpl.
2018-03-10 costan Add YouCompleteMe configuration.
2018-04-23 costan Add move constructor to Status.

Created with:
  roll-dep src/third_party/leveldatabase/src

Change-Id: I9aad751c72ea10d81d06ca25ae98e1a6b0f095b4
Reviewed-on: https://chromium-review.googlesource.com/1033586
Reviewed-by: Chris Mumford <cmumford@chromium.org>
Commit-Queue: Victor Costan <pwnall@chromium.org>
Cr-Commit-Position: refs/heads/master@{#559223}
1 file changed