All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=686175

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8J6Z5ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8PXOpwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg8KnevQkM


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

win-zenbook

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8989285765430360672

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: winx64_zen_perf_bisect
  Benchmark    : blink_perf.canvas
  Metric       : upload-video-to-texture/upload-video-to-texture

Revision             Result                 N
chromium@445700      1031.1 +- 189.537      21      good
chromium@445756      1017.7 +- 84.8934      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.canvas

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8989285765430360672

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6462755906781184


| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8987397530255278688

Looks like a patch was landed and reverted several times.

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: winx64_zen_perf_bisect
  Benchmark    : blink_perf.canvas
  Metric       : draw-dynamic-webgl-to-hw-accelerated-canvas-2d/draw-dynamic-webgl-to-hw-accelerated-canvas-2d

Revision             Result                  N
chromium@445700      1649.18 +- 874.876      21      good
chromium@445756      1616.61 +- 1078.45      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.canvas

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8987397530255278688

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5049056969097216


| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8982652086066669312

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: winx64_zen_perf_bisect
  Benchmark    : blink_perf.canvas
  Metric       : draw-dynamic-webgl-to-hw-accelerated-canvas-2d/draw-dynamic-webgl-to-hw-accelerated-canvas-2d

Revision             Result                  N
chromium@445700      836.56 +- 767.742       21      good
chromium@445756      833.108 +- 479.742      21      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.canvas

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8982652086066669312

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5049056969097216


| 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!

This alert was found before M-60 branched. Closing as WontFix as this is believed to either be invalid or non-reproducible.