Roll Perfetto from 744b988ae1b0 to 83b6c1ebd54d (3 revisions)

https://android.googlesource.com/platform/external/perfetto.git/+log/744b988ae1b0..83b6c1ebd54d

2020-11-05 hjd@google.com Merge "ui: Convert all queries to use slowlyCountRows"
2020-11-05 fmayer@google.com Merge "Document issue with missing frames."
2020-11-05 hjd@google.com Merge "ui: Fix topbar CSS"

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/+doc/master/autoroll/README.md

Cq-Include-Trybots: luci.chromium.try:linux-perfetto-rel
Bug: None
Tbr: perfetto-bugs@google.com
Change-Id: I3686ae040398251930ccf6cf4d88c774ed93a648
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2520878Reviewed-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@{#824421}

DEPS

@@ -1265,7 +1265,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + '744b988ae1b078eaa3eb46de9f57416b80760131',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + '83b6c1ebd54dcc97bad16d326c7e4fdf609a63da',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',