Roll Perfetto from c65f224a7259 to 8986f3ce67ec (9 revisions)

https://android.googlesource.com/platform/external/perfetto.git/+log/c65f224a7259..8986f3ce67ec

2020-12-21 primiano@google.com Merge "base: rename subprocess.cc -> subprocess_posix.cc"
2020-12-21 primiano@google.com Merge "Move ftrace format_parser into its own subdirectory"
2020-12-21 skyostil@google.com Merge "tracing: Add a way to observe track event sessions"
2020-12-21 primiano@google.com Merge "base::Pipe: Use HANDLE on Windows"
2020-12-21 delphick@google.com metrics: Remap all RAIL_MODE_LOAD to RAIL_MODE_ANIMATION
2020-12-21 delphick@google.com Merge "metrics: Use touch events in modified_rail_slices"
2020-12-21 treehugger-gerrit@google.com Merge "processor: Fix a stack overflow in memory snapshot parsing"
2020-12-19 primiano@google.com install-build-deps: Use different paths for clang on Win vs Linux
2020-12-19 primiano@google.com base::CircularQueue give up on const correctness for MSVC

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:174454879,chromium:175871311,chromium:176078470
Tbr: perfetto-bugs@google.com
Change-Id: I67ab37041b2397cbfd8e9e8a2228f3e80b2dd5ec
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2600063Reviewed-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@{#838736}

DEPS

@@ -1262,7 +1262,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + 'c65f224a7259d87bf1f980e7424d73fc0cfca795',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + '8986f3ce67ec65a72629404b45d639ca37e5ea2b',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',