Looking at the log, I don't see CertInstallationError, so these reference tests are failing due to different reasons (I see most of them are TestTimeOut).

I think it's fine to disable these.

I will create a difference CL to point to this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e68e880a2b458b4e7106edfbbebb0fbe18e912fc

commit e68e880a2b458b4e7106edfbbebb0fbe18e912fc
Author: zhenw <zhenw@chromium.org>
Date: Thu Mar 24 20:35:54 2016

Disable some tests on Nexus 5X reference again

Because of TimeoutException

BUG= 597656 
TBR=nednguyen@google.com

Review URL: https://codereview.chromium.org/1826273002

Cr-Commit-Position: refs/heads/master@{#383138}

[modify] https://crrev.com/e68e880a2b458b4e7106edfbbebb0fbe18e912fc/tools/perf/benchmarks/blink_style.py
[modify] https://crrev.com/e68e880a2b458b4e7106edfbbebb0fbe18e912fc/tools/perf/benchmarks/page_cycler.py
[modify] https://crrev.com/e68e880a2b458b4e7106edfbbebb0fbe18e912fc/tools/perf/benchmarks/power.py
[modify] https://crrev.com/e68e880a2b458b4e7106edfbbebb0fbe18e912fc/tools/perf/benchmarks/smoothness.py
[modify] https://crrev.com/e68e880a2b458b4e7106edfbbebb0fbe18e912fc/tools/perf/benchmarks/v8.py

Happening on (2) and (3) as well; disabling more tests: https://codereview.chromium.org/1836973002/

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8b5cfa1534e37d88681694b259c3645f0248ab2f

commit 8b5cfa1534e37d88681694b259c3645f0248ab2f
Author: oysteine <oysteine@chromium.org>
Date: Mon Mar 28 20:28:53 2016

Disabled more reference builds on the Nexus5X due to the TimeoutException error

BUG= 597656 
R=nednguyen@google.com

Review URL: https://codereview.chromium.org/1836973002

Cr-Commit-Position: refs/heads/master@{#383553}

[modify] https://crrev.com/8b5cfa1534e37d88681694b259c3645f0248ab2f/tools/perf/benchmarks/oilpan_gc_times.py
[modify] https://crrev.com/8b5cfa1534e37d88681694b259c3645f0248ab2f/tools/perf/benchmarks/page_cycler.py
[modify] https://crrev.com/8b5cfa1534e37d88681694b259c3645f0248ab2f/tools/perf/benchmarks/power.py
[modify] https://crrev.com/8b5cfa1534e37d88681694b259c3645f0248ab2f/tools/perf/benchmarks/service_worker.py
[modify] https://crrev.com/8b5cfa1534e37d88681694b259c3645f0248ab2f/tools/perf/benchmarks/smoothness.py
[modify] https://crrev.com/8b5cfa1534e37d88681694b259c3645f0248ab2f/tools/perf/benchmarks/v8.py

Bot health sheriff ping -- are we waiting for the next reference build update to try and re-enable these benchmarks on reference build?

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e187cbe0c5af79ca2cd9b6ade3d36a14060678eb

commit e187cbe0c5af79ca2cd9b6ade3d36a14060678eb
Author: ulan <ulan@chromium.org>
Date: Thu Mar 23 14:36:23 2017

Re-enable benchmarks for reference builds on Nexus 5X.

The benchmarks:
- v8.top_25_smooth,
- v8.key_mobile_sites_smooth,
- v8.mobile_infinite_scroll_tbmv2

BUG= chromium:597656 

Review-Url: https://codereview.chromium.org/2773693002
Cr-Commit-Position: refs/heads/master@{#459078}

[modify] https://crrev.com/e187cbe0c5af79ca2cd9b6ade3d36a14060678eb/tools/perf/benchmarks/v8.py

This issue was created > 6 months ago. The perf waterfall has changed significantly since then. If this bug is still relevant, please re-open.