Roll Perfetto from 9fb07662e436 to 31b44b3a70ed (1 revision)

https://android.googlesource.com/platform/external/perfetto.git/+log/9fb07662e436..31b44b3a70ed

2020-10-08 fmayer@google.com Improve docs about runtime signalling.

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: Ifea0db3c1d6058c50bc71eff79521bc553ddc2f9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2461960Reviewed-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@{#815178}

DEPS

@@ -1254,7 +1254,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + '9fb07662e43697b062a7b082dc8a418c909c1e9d',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + '31b44b3a70ed32acaf14ee98dd770431e00c30be',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',