Roll src/third_party/perfetto 070a9e2a8724..40aaf7602881 (3 commits)

https://android.googlesource.com/platform/external/perfetto.git/+log/070a9e2a8724..40aaf7602881

git log 070a9e2a8724..40aaf7602881 --date=short --no-merges --format='%ad %ae %s'
2019-11-07 ilkos@google.com Merge "UUID in TraceMetadata"
2019-11-07 fmayer@google.com Merge "Do not use garbage object for unique_retained / retained calculation."
2019-11-07 treehugger-gerrit@google.com Merge "core: Expose kMaxPreambleBytes from TracePacket"

Created with:
  gclient setdep -r src/third_party/perfetto@40aaf7602881

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

TBR=perfetto-bugs@google.com

Bug: None
Change-Id: I0bb8e1dd28f6e7523e967de734239b3dd69c9bda
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1903512Reviewed-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@{#713432}

DEPS

@@ -1311,7 +1311,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + '070a9e2a8724fca4c6283334217a0d9cae04ce43',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + '40aaf7602881cbb3856c1ba7d2da44b818556c41',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',