Roll AFDO from 70.0.3514.0_rc-r1 to 70.0.3515.0_rc-r1

This CL may cause a small binary size increase, roughly proportional
to how long it's been since our last AFDO profile roll. For larger
increases (around or exceeding 100KB), please file a bug against
gbiv@chromium.org. Additional context: https://crbug.com/805539

The AutoRoll server is located here: https://afdo-chromium-roll.skia.org

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=gbiv@chromium.org

Change-Id: If74a5b3fa28406bacfe489cff08e9bd636bef897
Reviewed-on: https://chromium-review.googlesource.com/1164842
Commit-Queue: afdo-chromium-autoroll <afdo-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: afdo-chromium-autoroll <afdo-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#581157}

chrome/android/profiles/newest.txt

-chromeos-chrome-amd64-70.0.3514.0_rc-r1.afdo.bz2
+chromeos-chrome-amd64-70.0.3515.0_rc-r1.afdo.bz2
\ No newline at end of file