All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=718778

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgivrYrQoM


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

chromium-rel-mac11

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8980441519668646096

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8980441369406887088

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : zakerinasab
  Commit : 4c4a925b1a047a296b7962566ff63918f3eba1c4
  Date   : Tue May 02 20:34:28 2017
  Subject: Add performance test for ImageData.dataUnion

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : blink_perf.canvas
  Metric       : createImageBitmapFromImageData/createImageBitmapFromImageData
  Change       : 70.34% | 572.601801619 -> 169.807495875

Revision             Result                  N
chromium@468763      572.602 +- 39.9882      6      good
chromium@468764      169.594 +- 2.33063      6      bad       <--
chromium@468765      168.915 +- 7.29012      6      bad
chromium@468766      170.254 +- 1.70721      6      bad
chromium@468769      169.807 +- 3.2675       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.canvas

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8980441369406887088

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5821351987773440


| 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 Speed>Bisection.  Thank you!

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : zakerinasab
  Commit : 4c4a925b1a047a296b7962566ff63918f3eba1c4
  Date   : Tue May 02 20:34:28 2017
  Subject: Add performance test for ImageData.dataUnion

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : blink_perf.canvas
  Metric       : createImageBitmapFromImageData/createImageBitmapFromImageData
  Change       : 70.48% | 578.766037489 -> 170.8729041

Revision             Result                   N
chromium@468733      578.766 +- 23.5718       6      good
chromium@468761      533.504 +- 3.29703       6      good
chromium@468763      532.44 +- 8.88658        6      good
chromium@468764      170.292 +- 1.09306       6      bad       <--
chromium@468765      169.438 +- 1.77584       6      bad
chromium@468768      169.633 +- 1.77828       6      bad
chromium@468775      142.276 +- 0.841581      6      bad
chromium@468789      170.048 +- 1.78544       6      bad
chromium@468844      170.873 +- 2.45059       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.canvas

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8980441519668646096

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5849438389534720


| 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 Speed>Bisection.  Thank you!