All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=659849

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg3ae0uwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg3bWC5QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgvaDMpQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgvbmlswoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgvYiypwkM


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

android-nexus5
android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8997694013273078560

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


===== SUSPECTED CL(s) =====
Subject : Initialize buffers before allowing access to them.
Author  : zmo
Commit description:
  
Also, refactor buffer access validation a bit to reduce
duplicated codes.

(Note that this is still part 1 of the work. We have more
buffer access paths that we need to put in buffer access
validation.)

BUG= 654201 
TEST=gpu_unittests, webgl_conformance
R=piman@chromium.org
CQ_INCLUDE_TRYBOTS=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

Review-Url: https://codereview.chromium.org/2435803004
Cr-Commit-Position: refs/heads/master@{#427200}
Commit  : 26c35c2e81f97a5b291ebd4d639fc3f1a4cc50e8
Date    : Tue Oct 25 01:03:34 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N  Good?
chromium@427182  10.5201  0.213665  5  good
chromium@427195  10.4637  0.272051  5  good
chromium@427198  10.3609  0.286914  5  good
chromium@427199  10.5849  0.143187  5  good
chromium@427200  11.6676  0.247873  5  bad    <--
chromium@427201  11.766   0.352476  5  bad
chromium@427207  11.5022  0.177567  5  bad
chromium@427231  11.6731  0.285408  5  bad
chromium@427279  11.5829  0.234962  5  bad

Bisect job ran on: android_nexus5_perf_bisect
Bug ID: 659849

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests media.android.tough_video_cases
Test Metric: cpu_utilization/video.html?src_crowd720_vp9.webm
Relative Change: 10.10%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5_perf_bisect/builds/4298
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8997694013273078560


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  https://chromeperf.appspot.com/bad_bisect?try_job_id=5852841988587520

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