The following revision refers to this bug:
  https://chromium.googlesource.com/catapult/+/62619cb4a9ae51f6c858c001da7ff40f182895cd

commit 62619cb4a9ae51f6c858c001da7ff40f182895cd
Author: Sadrul Habib Chowdhury <sadrul@chromium.org>
Date: Thu Jan 25 05:52:58 2018

tabs: Add a TBM metric for tab_switching.

Add a TBM-based metric for measuring tab_switching latency.

BUG= chromium:802104 

Change-Id: I9052cb3cf7006cb7d2879cbb106088534aa8700f
Reviewed-on: https://chromium-review.googlesource.com/831092
Reviewed-by: Ben Hayden <benjhayden@chromium.org>
Commit-Queue: Sadrul Chowdhury <sadrul@chromium.org>

[add] https://crrev.com/62619cb4a9ae51f6c858c001da7ff40f182895cd/tracing/tracing/metrics/tabs_metric_test.html
[modify] https://crrev.com/62619cb4a9ae51f6c858c001da7ff40f182895cd/tracing/trace_viewer.gypi
[add] https://crrev.com/62619cb4a9ae51f6c858c001da7ff40f182895cd/tracing/tracing/metrics/tabs_metric.html
[modify] https://crrev.com/62619cb4a9ae51f6c858c001da7ff40f182895cd/tracing/tracing/metrics/all_metrics.html

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/d8100dc0019e9e0856da0b5711e76135b0f022cc

commit d8100dc0019e9e0856da0b5711e76135b0f022cc
Author: catapult-deps-roller@chromium.org <catapult-deps-roller@chromium.org>
Date: Thu Jan 25 08:54:25 2018

Roll src/third_party/catapult/ e99797e78..62619cb4a (1 commit)

https://chromium.googlesource.com/catapult.git/+log/e99797e78121..62619cb4a9ae

$ git log e99797e78..62619cb4a --date=short --no-merges --format='%ad %ae %s'
2018-01-23 sadrul tabs: Add a TBM metric for tab_switching.

Created with:
  roll-dep src/third_party/catapult
BUG= 802104 


The AutoRoll server is located here: https://catapult-roll.skia.org

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_optional_gpu_tests_rel
TBR=sullivan@chromium.org

Change-Id: I0fc3060a5238dcb88de1069b738a0b58a70ceb5c
Reviewed-on: https://chromium-review.googlesource.com/886181
Commit-Queue: <catapult-deps-roller@chromium.org>
Reviewed-by: <catapult-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#531852}
[modify] https://crrev.com/d8100dc0019e9e0856da0b5711e76135b0f022cc/DEPS

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/43487fc89193d2cd284c17d355787727482763bd

commit 43487fc89193d2cd284c17d355787727482763bd
Author: Sadrul Habib Chowdhury <sadrul@chromium.org>
Date: Thu Jan 25 16:21:42 2018

tab_switching: Switch over to the new tbm metric.

Switch the tab_switching benchmark to use the new TBMv2 metric for
measuring tab-switching latency.

BUG= 802104 

Change-Id: I7ab9610811b842feacf3a28845a2b267de4bfd20
Reviewed-on: https://chromium-review.googlesource.com/886003
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Commit-Queue: Sadrul Chowdhury <sadrul@chromium.org>
Cr-Commit-Position: refs/heads/master@{#531912}
[modify] https://crrev.com/43487fc89193d2cd284c17d355787727482763bd/tools/perf/benchmarks/tab_switching.py
[delete] https://crrev.com/cdb51726002968dfa4f0e88e44b6b69488275f25/tools/perf/measurements/tab_switching.py
[delete] https://crrev.com/cdb51726002968dfa4f0e88e44b6b69488275f25/tools/perf/measurements/tab_switching_unittest.py

There is a version of tab_switching for Chrome OS in contrib/cros_benchmarks/tab_switching_bench.py. Will this change affect it as well?

ping.