Roll src/third_party/catapult/ 1b26db0a1..af47a9399 (3 commits)

https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git/+log/1b26db0a1723..af47a939971b

$ git log 1b26db0a1..af47a9399 --date=short --no-merges --format='%ad %ae %s'
2017-07-14 benjhayden Refactor reserved_infos out of histogram.py
2017-07-14 benjhayden Build HistogramGroupings from tags.
2017-07-14 benjhayden Refactor histogram_set_table_test to use HistogramSet.createHistogram().

Created with:
  roll-dep src/third_party/catapult


Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, see:
http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium#TOC-Failures-due-to-DEPS-rolls


CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_optional_gpu_tests_rel
TBR=sullivan@chromium.org

Change-Id: I0aefae80591708dde9b2cd78eab35a4abbc019b4
Reviewed-on: https://chromium-review.googlesource.com/572204
Reviewed-by: <catapult-deps-roller@chromium.org>
Commit-Queue: <catapult-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#486896}

DEPS

@@ -96,7 +96,7 @@ 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': '1b26db0a17230718b057984281845cc7730453b4',
+  'catapult_revision': 'af47a939971b50a8f4c7b2e234ec7069ca196841',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libFuzzer
   # and whatever else without interference from each other.