Roll src/third_party/catapult/ 8c5c37517..8484270f6 (3 commits).

https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git/+log/8c5c37517378..8484270f6d2c

$ git log 8c5c37517..8484270f6 --date=short --no-merges --format='%ad %ae %s'
2016-09-14 benjhayden [value-set-table] Move Show all to the right.
2016-09-14 petrcermak [tracing] Add step-into event to <tr-ui-b-table>
2016-09-14 nednguyen Fix running statistics's mean implementation

TBR=catapult-sheriff@chromium.org

Review-Url: https://codereview.chromium.org/2340733004
Cr-Commit-Position: refs/heads/master@{#418648}

DEPS

@@ -92,7 +92,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling catapult
   # and whatever else without interference from each other.
-  'catapult_revision': '8c5c3751737820b38b684fd11b3069555586dfbe',
+  'catapult_revision': '8484270f6d2c442f69ef30d80e815517c896e782',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libFuzzer
   # and whatever else without interference from each other.