Roll src/third_party/perfetto 5cb84f85868b..a6b8b8078371 (2 commits)

https://android.googlesource.com/platform/external/perfetto.git/+log/5cb84f85868b..a6b8b8078371


git log 5cb84f85868b..a6b8b8078371 --date=short --no-merges --format='%ad %ae %s'
2018-11-01 primiano@google.com Merge "Minor ui improvements"
2018-11-01 primiano@google.com Minor fixes to SQL controller and UI overview timeline


Created with:
  gclient setdep -r src/third_party/perfetto@a6b8b8078371

The AutoRoll server is located here: https://autoroll.skia.org/r/perfetto-chromium-autoroll

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

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=perfetto-bugs@google.com

Change-Id: Ibbac7a5b813ef0d9b4faab5520b4beadd854b2b2
Reviewed-on: https://chromium-review.googlesource.com/c/1312334Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#604611}

DEPS

@@ -1009,7 +1009,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' +  '5cb84f85868bb46e41f7651cb6016d6981b88059',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' +  'a6b8b8078371b14fb642264ba52a02d510c25fef',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + 'ac0d98b5cee6c024b0cffeb4f8f45b6fc5ccdb78',