All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=619494

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg_L3moAoM


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

android-one

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


===== SUSPECTED CL(s) =====
Subject : Reserve enough vertical space for the menuList layout element setting its logical height to the max option height.
Author  : glebl
Commit description:
  
The option's height is calculated from option's text FloatRect generated by CachingWordShaper.

BUG= 484632 

TEST=fast/forms/select/menulist-height-change.html

Review-Url: https://codereview.chromium.org/2055593002
Cr-Commit-Position: refs/heads/master@{#399293}
Commit  : 4681903723a0df535a60069ec9f7d6ea21fe69d0
Date    : Fri Jun 10 22:16:58 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev    N  Good?
chromium@399253  14.9208  0.0660688  5  good
chromium@399280  14.9234  0.107529   5  good
chromium@399287  14.9382  0.164621   5  good
chromium@399291  14.8818  0.100499   5  good
chromium@399292  14.9426  0.0608234  5  good
chromium@399293  10.2434  0.0368484  5  bad    <--
chromium@399294  10.1324  0.0758926  5  bad
chromium@399307  10.1787  0.0607924  5  bad

Bisect job ran on: android_one_perf_bisect
Bug ID: 619494

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests blink_perf.dom
Test Metric: select-multiple-add/select-multiple-add
Relative Change: 31.78%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_one_perf_bisect/builds/1347
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9009983551619350336


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