Perf: Update size expectations on linux-rel
Regression are tiny:
- nacl_helper/nacl_helper (0.04%)
- nacl_helper-text/text (0.06%)
http://build.chromium.org/p/chromium/builders/Linux/builds/53437
https://chromeperf.appspot.com/report?masters=Chromium&bots=chromium-rel-linux&tests=sizes%2Fnacl_helper&rev=294990&checked=all
https://chromeperf.appspot.com/report?masters=Chromium&bots=chromium-rel-linux&tests=sizes%2Fnacl_helper-text&rev=294990&checked=all
TBR=nhiroki@chromium.org
NOTRY=true
Review URL: https://codereview.chromium.org/
571313002
Cr-Commit-Position: refs/heads/master@{#295017}