Roll src/third_party/perfetto fffa30d10879..f94b736c58a6 (4 commits)

https://android.googlesource.com/platform/external/perfetto.git/+log/fffa30d10879..f94b736c58a6

git log fffa30d10879..f94b736c58a6 --date=short --first-parent --format='%ad %ae %s'
2019-12-13 primiano@google.com Merge "Docs: fix github link"
2019-12-13 primiano@google.com Merge "Remove SlicedProtobufInputStream"
2019-12-13 taylori@google.com Merge "ui: Two small fixes for run-dev-server"
2019-12-13 taylori@google.com Merge "perfetto-ui: Show CPU slice aggregation"

Created with:
  gclient setdep -r src/third_party/perfetto@f94b736c58a6

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: None
Tbr: perfetto-bugs@google.com
Change-Id: If000b8f3f608d089bdbe9f7beec65801e7389e9a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1966733Reviewed-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@{#724729}

DEPS

@@ -1295,7 +1295,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + 'fffa30d1087901563a89c00e7c8dabb571af0cef',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + 'f94b736c58a63e92bf31b6dec6aa8f09c2b33e28',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',