Roll src/third_party/catapult/ 6a40da54c..3cab53b2a (2 commits).
Roll src/third_party/catapult/ 6a40da54c..3cab53b2a (2 commits).

https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git/+log/6a40da54c479..3cab53b2a75a

$ git log 6a40da54c..3cab53b2a --date=short --no-merges --format='%ad %ae %s'

TBR=catapult-sheriff@chromium.org

Review URL: https://codereview.chromium.org/1882413003

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#387099}

axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk