Roll Chrome Linux PGO Profile

Roll Chrome Linux PGO profile from chrome-linux-master-1609821402-4ffa353dbb439d0e8adf0e53cbe86a4c4b758321.profdata to chrome-linux-master-1609847937-af9ee8d51bc6a0aba5c9a2202bd2fb2e3011ef58.profdata

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/pgo-linux-chromium
Please CC pgo-profile-sheriffs@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.chrome.try:linux-chrome
Tbr: pgo-profile-sheriffs@google.com
Change-Id: Ie7e66a9e8bdd114b85648a002639fc056d54b3f7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2609882Reviewed-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@{#840142}

chrome/build/linux.pgo.txt

-chrome-linux-master-1609821402-4ffa353dbb439d0e8adf0e53cbe86a4c4b758321.profdata
+chrome-linux-master-1609847937-af9ee8d51bc6a0aba5c9a2202bd2fb2e3011ef58.profdata