All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=667786

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6_b4ogsM


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

android-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8995277459024476256

=== Auto-CCing suspected CL author bshe@chromium.org ===

Hi bshe@chromium.org, the bisect results pointed to your CL below as possibly
causing a regression. Please have a look at this info and see whether
your CL be related.


===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : Reland of Enable WebVR for non component build (patchset #1 id:1 of https://codereview.chromium.org/2505963003/ )
Author  : bshe
Commit description:
  
Reason for revert:
Hi Andrew.
It turns out that our UX review is blocked on this. We need it in canary build. I will revert your revert for now. And I will work with you tomorrow to figure out if there is a way to reduce dex size of gvr. There should be enough time to land/merge these improvements before it hits stable.
Anyway, let's talk tomorrow. Thanks!

Original issue's description:
> Revert of Enable WebVR for non component build (patchset #5 id:80001 of https://codereview.chromium.org/2502643002/ )
>
> Reason for revert:
> Reverting until dex size growth is understood.
>
> Original issue's description:
> > Enable Android WebVR for arm & arm64
> >
> > BUG=644785
> >
> > Committed: https://crrev.com/7e31a518a02e80fa167181be029691d41fadb898
> > Cr-Commit-Position: refs/heads/master@{#432489}
>
> TBR=bshe@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=644785
>
> Committed: https://crrev.com/19ef7689f208ee3222539bf0bb1d4054b2dbf780
> Cr-Commit-Position: refs/heads/master@{#432606}

TBR=agrieve@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=644785

Review-Url: https://codereview.chromium.org/2505313002
Cr-Commit-Position: refs/heads/master@{#432723}
Commit  : eabd2c4458bf716a84e060d3d80e3d931dfa69d7
Date    : Thu Nov 17 03:30:49 2016


===== TESTED REVISIONS =====
Revision         Mean      Std Dev  N   Good?
chromium@432514  15543680  77404.3  8   good
chromium@432643  15471821  33974.6  5   good
chromium@432708  15512448  168176   8   good
chromium@432716  15598336  64402.2  8   good
chromium@432720  15621376  110115   8   good
chromium@432722  15591680  189613   8   good
chromium@432723  15713536  97616.3  8   bad    <--
chromium@432724  15715200  90535.0  8   bad
chromium@432740  15617877  225805   12  bad
chromium@432772  15603712  62388.4  8   bad

Bisect job ran on: android_nexus6_perf_bisect
Bug ID: 667786

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.games.lazors system_health.memory_mobile
Test Metric: memory:chrome:all_processes:reported_by_os:system_memory:java_heap:proportional_resident_size_avg/load_games/load_games_lazors
Relative Change: 0.39%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2772
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8995277459024476256


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5716659946389504

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!

My CL brings in gvr library and currently it increases the dex size by around 200k. Gvr team is going to work on a fix during a fixit event early Decemeber. After that, we should be able reduce the size. This regression is expected at the moment.

+picksi, benhenry for system health plan FYI