Roll Perfetto from b1e3f57ef7c0 to af2dca5c5320 (2 revisions)

https://android.googlesource.com/platform/external/perfetto.git/+log/b1e3f57ef7c0..af2dca5c5320

2020-08-28 fmayer@google.com Merge changes Ifdb4b002,I8c0d63c9,Ic64bb6d9
2020-08-28 taylori@google.com Merge "perfetto-ui: Add exception logging"

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: Ic238798d09af06f17fb300ff56a2c1f5824b136f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2381946Reviewed-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@{#802787}

DEPS

@@ -1249,7 +1249,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + 'b1e3f57ef7c09a762b6a621be70b117fc5e73824',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + 'af2dca5c5320bb53e60d3f244c6cebbbbe809038',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',