Roll src/third_party/perfetto 0a5ac419555b..84dafa149509 (4 commits)

https://android.googlesource.com/platform/external/perfetto.git/+log/0a5ac419555b..84dafa149509

git log 0a5ac419555b..84dafa149509 --date=short --first-parent --format='%ad %ae %s'
2020-01-22 ilkos@google.com Merge "Filter empty symbols"
2020-01-22 lalitm@google.com Merge "ui: add global slice tracks"
2020-01-22 buss@google.com Merge "Add link to prebuilt binaries/wrapper."
2020-01-22 fmayer@google.com Merge changes Ie5ab30a4,I3d3577d1

Created with:
  gclient setdep -r src/third_party/perfetto@84dafa149509

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/perfetto-chromium-autoroll
Please CC perfetto-bugs@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

Bug: None
Tbr: perfetto-bugs@google.com
Change-Id: I4835429f5772fa339c316f8fea959f5e6645ff26
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2014670Reviewed-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@{#734051}

DEPS

@@ -1297,7 +1297,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + '0a5ac419555bf26162e8e07b5f9163c6324c7610',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + '84dafa149509810c7a3e341deec044427a0a69fe',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',