Roll src/third_party/catapult/ d961ec30c..a2bac5f24 (1 commit).

https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git/+log/d961ec30c833..a2bac5f24b7e

$ git log d961ec30c..a2bac5f24 --date=short --no-merges --format='%ad %ae %s'
2016-09-09 petrcermak [tracing] Add <tr-v-ui-scalar-context-controller> element

TBR=catapult-sheriff@chromium.org

Review-Url: https://codereview.chromium.org/2324593006
Cr-Commit-Position: refs/heads/master@{#417556}

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': 'd961ec30c833a85968151d834a3e563ebe1aa6a1',
+  'catapult_revision': 'a2bac5f24b7ecb9996b8ef4ae9ffc177fc6db0bd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling libFuzzer
   # and whatever else without interference from each other.