The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/683fd5240b6e43eeb5e6e75cb641f19dc2c93649

commit 683fd5240b6e43eeb5e6e75cb641f19dc2c93649
Author: Scott Haseley <shaseley@google.com>
Date: Sat Jun 30 00:29:51 2018

[scheduler] Add per-queue and load UMAs after tenth minute in background

We currently have metrics for after fifth minute in the background. This
change adds after tenth minute which will allow us to understand how
background CPU usage changes over a longer period of time.

Bug:  832170 
Change-Id: I0d6a344df9faf749c7a9f61ff6653e55a6591d46
Reviewed-on: https://chromium-review.googlesource.com/1115768
Reviewed-by: Shubhie Panicker <panicker@chromium.org>
Reviewed-by: Steven Holte <holte@chromium.org>
Reviewed-by: Alexander Timin <altimin@chromium.org>
Commit-Queue: Scott Haseley <shaseley@google.com>
Cr-Commit-Position: refs/heads/master@{#571712}
[modify] https://crrev.com/683fd5240b6e43eeb5e6e75cb641f19dc2c93649/third_party/blink/renderer/platform/scheduler/main_thread/main_thread_metrics_helper.cc
[modify] https://crrev.com/683fd5240b6e43eeb5e6e75cb641f19dc2c93649/third_party/blink/renderer/platform/scheduler/main_thread/main_thread_metrics_helper.h
[modify] https://crrev.com/683fd5240b6e43eeb5e6e75cb641f19dc2c93649/tools/metrics/histograms/histograms.xml