Issue 812777  has been merged into this issue.

I strongly suspect based on the flakiness dashboard (https://test-results.appspot.com/dashboards/flakiness_dashboard.html#testType=blink_perf.canvas&builder=chromium.perf%3AAndroid%20Nexus5X%20Perf) that the first failing revision was 533941 and the last passing revision was 533838. I'm going to kick a bisect off in this range.

There also seems to have been a major regression of the metric in this range, so I think that it's likely.

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/14e77af3840000

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/14e77af3840000

The NextAction date has arrived: 2018-02-16

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/250fb9b35311a6d66d9d00a3696be9ccd77da062

commit 250fb9b35311a6d66d9d00a3696be9ccd77da062
Author: Charlie Andrews <charliea@chromium.org>
Date: Fri Feb 16 15:42:53 2018

Disable failing blink_perf.canvas story on 5, 5X, and 5X webview

TBR=ashleymarie@chromium.org
NOTRY=true

Bug: 812615
Change-Id: Ib89c68b30e3b0f33eded7e35572dd71208d60a4d
Reviewed-on: https://chromium-review.googlesource.com/922788
Reviewed-by: Ashley Enstad <ashleymarie@chromium.org>
Reviewed-by: Charlie Andrews <charliea@chromium.org>
Commit-Queue: Charlie Andrews <charliea@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537309}
[modify] https://crrev.com/250fb9b35311a6d66d9d00a3696be9ccd77da062/tools/perf/expectations.config

Bisect was unable to repro a failure - kicking this over to the benchmark owner. junov@, could you maybe try kicking off a bisect with a wider revision range?

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/846149dd2f73b6114e2204fdc3ca356bdc50dfcb

commit 846149dd2f73b6114e2204fdc3ca356bdc50dfcb
Author: Khushal <khushalsagar@chromium.org>
Date: Tue Feb 20 21:07:51 2018

Revert "Disable failing blink_perf.canvas story on 5, 5X, and 5X webview"

This reverts commit 250fb9b35311a6d66d9d00a3696be9ccd77da062.

Reason for revert: The bug which caused the failure has been fixed.

Original change's description:
> Disable failing blink_perf.canvas story on 5, 5X, and 5X webview
> 
> TBR=ashleymarie@chromium.org
> NOTRY=true
> 
> Bug: 812615
> Change-Id: Ib89c68b30e3b0f33eded7e35572dd71208d60a4d
> Reviewed-on: https://chromium-review.googlesource.com/922788
> Reviewed-by: Ashley Enstad <ashleymarie@chromium.org>
> Reviewed-by: Charlie Andrews <charliea@chromium.org>
> Commit-Queue: Charlie Andrews <charliea@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#537309}

TBR=charliea@chromium.org,ashleymarie@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 812615
Change-Id: I2cb330d935fdf42d41c00e05637e3dee9e22989f
Reviewed-on: https://chromium-review.googlesource.com/927202
Reviewed-by: Khushal <khushalsagar@chromium.org>
Reviewed-by: Ashley Enstad <ashleymarie@chromium.org>
Commit-Queue: Khushal <khushalsagar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537880}
[modify] https://crrev.com/846149dd2f73b6114e2204fdc3ca356bdc50dfcb/tools/perf/expectations.config

What CL was ultimately responsible for these failures?

 Issue 812744  has been merged into this issue.