Roll Perfetto from 46b0d8780f66 to 7176f54720e6 (4 revisions)

https://android.googlesource.com/platform/external/perfetto.git/+log/46b0d8780f66..7176f54720e6

2020-08-04 hjd@google.com Merge "Support armv7l in system_probes_parser"
2020-08-04 lalitm@google.com Merge "tp: switch from dict to list of pairs in descriptor generation script"
2020-08-04 hjd@google.com Merge "Call sendfile in a loop to handle short writes"
2020-08-04 lalitm@google.com Merge "ui: fix searching for data bounds on tracks"

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: I36af41efbcb71eba7c1b942c3c89e1fc9d2712e6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2336765Reviewed-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@{#794555}

DEPS

@@ -1248,7 +1248,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + '46b0d8780f6664c080dbec70c09bdd207cff12e9',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + '7176f54720e6f5ff087e1fe6407191b5692a7aa2',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',