Roll src/third_party/catapult/ 328391fbc..8917fb02c (1 commit).

https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git/+log/328391fbc1e3..8917fb02c5d6

$ git log 328391fbc..8917fb02c --date=short --no-merges --format='%ad %ae %s'
2016-09-08 benjhayden Move unit_scale.html from value to base

TBR=catapult-sheriff@chromium.org

Review-Url: https://codereview.chromium.org/2321103003
Cr-Commit-Position: refs/heads/master@{#417356}

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': '328391fbc1e3f931caf93d1e3f50d1643e624560',
+  'catapult_revision': '8917fb02c5d6ff26b72d94b7b3cae821b1eb3254',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libFuzzer
   # and whatever else without interference from each other.