Roll Perfetto from 3ffd1d826be3 to 46877765c47c (1 revision)

https://android.googlesource.com/platform/external/perfetto.git/+log/3ffd1d826be3..46877765c47c

2020-09-02 fmayer@google.com Handle sigaltstack.

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: chromium:160827189
Tbr: perfetto-bugs@google.com
Change-Id: Id0cf43fd1a9686b96844af41c68086a56e819e6e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2390886Reviewed-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@{#804030}

DEPS

@@ -1249,7 +1249,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + '3ffd1d826be381dc05646691433a6872766424a4',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + '46877765c47c08b7f5ab2d8364e26d968e10c5e1',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',