All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=661547

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgg_OCowkM


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

chromium-rel-win8-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8997106396155311344

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


===== SUSPECTED CL(s) =====
Subject : Getting rid of DelegatedFrameData
Author  : samans
Commit description:
  
Note: From now on, the concept of "null" compositor frame (a compositor frame with a null delegated frame data) is gone. You should use base::Optional<CompositorFrame> instead.

BUG= 653741 

Review-Url: https://codereview.chromium.org/2449853004
Cr-Commit-Position: refs/heads/master@{#428591}
Commit  : 4ba3a0e9d06bf66b3d900fec44bcf8ee4a2964a2
Date    : Sat Oct 29 02:32:05 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N  Good?
chromium@428588  26.2402  0.632515  5  good
chromium@428590  25.4706  1.06044   5  good
chromium@428591  42.9184  8.7276    5  bad    <--
chromium@428593  42.2868  8.83592   5  bad
chromium@428598  42.4732  9.56388   5  bad
chromium@428607  42.5746  9.09299   5  bad

Bisect job ran on: win_8_perf_bisect
Bug ID: 661547

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests smoothness.top_25_smooth
Test Metric: first_gesture_scroll_update_latency/http___techcrunch.com
Relative Change: 62.25%
Score: 98.0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/win_8_perf_bisect/builds/2269
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8997106396155311344


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5341400718114816

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