Roll Chrome Mac PGO Profile

Roll Chrome Mac PGO profile from chrome-mac-master-1600883819-b4e54673a8ac66af896b73e5221cf1b275c98c77.profdata to chrome-mac-master-1600905490-fdb2e7b3449a423d26d1d15a08c032508e6d13fa.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-mac-chromium
Please CC sebmarchand+pgo_roller@google.com,jeffyoon@google.com,liaoyuke@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:mac-chrome
Tbr: sebmarchand+pgo_roller@google.com,jeffyoon@google.com,liaoyuke@google.com
Change-Id: I0ed53d6c7cc3caee025cbc87ef699fa9b2d91d44
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2427528Reviewed-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@{#810073}

chrome/build/mac.pgo.txt

-chrome-mac-master-1600883819-b4e54673a8ac66af896b73e5221cf1b275c98c77.profdata
+chrome-mac-master-1600905490-fdb2e7b3449a423d26d1d15a08c032508e6d13fa.profdata