Roll src/third_party/catapult/ 921b5ddf5..321aaf9c5 (5 commits).
Roll src/third_party/catapult/ 921b5ddf5..321aaf9c5 (5 commits).

https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git/+log/921b5ddf5b7d..321aaf9c5142

$ git log 921b5ddf5..321aaf9c5 --date=short --no-merges --format='%ad %ae %s'

BUG=561763,561447

TBR=catapult-sheriff@chromium.org

Review URL: https://codereview.chromium.org/1886643002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#386915}

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