Roll src/third_party/perfetto a4b8c86e94ba..2f0b41d4e7f8 (2 commits)

https://android.googlesource.com/platform/external/perfetto.git/+log/a4b8c86e94ba..2f0b41d4e7f8

git log a4b8c86e94ba..2f0b41d4e7f8 --date=short --first-parent --format='%ad %ae %s'
2020-02-27 lalitm@google.com tp: split systrace trace parser into pieces
2020-02-27 lalitm@google.com tp: print stats before entering HTTP mode

Created with:
  gclient setdep -r src/third_party/perfetto@2f0b41d4e7f8

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: chromium:150213213
Tbr: perfetto-bugs@google.com
Change-Id: I7cadab7dcc6e17e0a06a55e17f7ce1330b6458ca
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2079034Reviewed-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@{#745179}

DEPS

@@ -1230,7 +1230,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + 'a4b8c86e94ba29dcdacbf2c14dc0c8f4801547a1',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + '2f0b41d4e7f842674d6af96f9b65c338145aa322',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',