All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=822287

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=19c2c3f3a66ff3691cdd07c2dcbef6d6ec199baa36856fb30cd50b433ab54ff7


Bot(s) for this bug's original alert(s):

linux
win

Assigning to v8-autoroll@chromium.org because this is the only CL in range:
Update V8 to version 6.7.31.

Summary of changes available at:
https://chromium.googlesource.com/v8/v8/+log/0cf325d6..6487d3d1

Please follow these instructions for assigning/CC'ing issues:
https://github.com/v8/v8/wiki/Triaging%20issues

Please close rolling in case of a roll revert:
https://v8-roll.appspot.com/
This only works with a Google account.

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel

TBR=hablich@chromium.org,machenbach@chromium.org,kozyatinskiy@chromium.org,sergiyb@chromium.org

Change-Id: I0c81296a4b5b6aea7abf4856deb9f59e4da79b71
Reviewed-on: https://chromium-review.googlesource.com/958185
Reviewed-by: v8 autoroll <v8-autoroll@chromium.org>
Commit-Queue: v8 autoroll <v8-autoroll@chromium.org>
Cr-Commit-Position: refs/heads/master@{#542396}

Looks like the v8 roll above increased binary size by 280KiB on Windows and Linux. Can someone from v8 team take a look?

Maybe https://chromium.googlesource.com/v8/v8/+/31ac0219a3e68a2470d169f76f23dc06fd84f7d2 ? 

Close, but no cigar: it's https://crrev.com/c/957024 that increases binary size.

This CL embeds builtins into the binary. A followup (https://chromium-review.googlesource.com/964481) removes the corresponding builtins from the snapshot, so overall it should be net neutral (more or less, given that the snapshotted format attempts to compress a bit and the snapshot now contains tiny serialized trampolines).

Snapshot size reduction: https://chromeperf.appspot.com/report?sid=c6da0bf539521d2fa2d2a063e3e499f0ff5456a92070535063618adf0d74e0b7&start_rev=51384&end_rev=52233

Binary increase: https://chromeperf.appspot.com/report?sid=76f2cb63387357c82c2c666ec7b5d2ba0548174ee70ea8fd0b05df96b1ad7d0d&start_rev=51690&end_rev=52238

 Issue 823506  has been merged into this issue.