Roll src/third_party/perfetto 4642612f23bb..1bcd9c3c16c5 (3 commits)

https://android.googlesource.com/platform/external/perfetto.git/+log/4642612f23bb..1bcd9c3c16c5

git log 4642612f23bb..1bcd9c3c16c5 --date=short --first-parent --format='%ad %ae %s'
2019-12-17 treehugger-gerrit@google.com Merge "Don't use sprintf for hex dumping."
2019-12-17 treehugger-gerrit@google.com Merge "trace processor: Export NaN/Infinity debug annotations to JSON properly"
2019-12-17 fmayer@google.com Merge "Doc fix adb killall -> adb shell killall."

Created with:
  gclient setdep -r src/third_party/perfetto@1bcd9c3c16c5

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: Ifb4a5bbe6b9faab623619e836ee3e56e76adce55
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1971458Reviewed-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@{#725505}

DEPS

@@ -1295,7 +1295,7 @@ deps = {
   },
 
   'src/third_party/perfetto':
-    Var('android_git') + '/platform/external/perfetto.git' + '@' + '4642612f23bb0a92e6a07e60afe9392286a5d4a9',
+    Var('android_git') + '/platform/external/perfetto.git' + '@' + '1bcd9c3c16c5dd169abec97225525eedb0f20e51',
 
   'src/third_party/perl': {
       'url': Var('chromium_git') + '/chromium/deps/perl.git' + '@' + '6f3e5028eb65d0b4c5fdd792106ac4c84eee1eb3',