We need two metrics: - Notification dismissal via swipe vs mouse - Scrolling notification list via mouse scroll vs touch.
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/51e17067fa4ce5d2ba7c07480a3823b0d6fe0b7c commit 51e17067fa4ce5d2ba7c07480a3823b0d6fe0b7c Author: yoshiki iguchi <yoshiki@chromium.org> Date: Wed Jul 18 12:29:01 2018 Add metrics for scrolling on message center This CL adds a metrics of - Scroll by touch on message center - Scroll by arrow key on message center - Scroll by mouse wheel on message center Bug: 854470 Test: None Change-Id: I11cad33ceaa192ee0afe3e6712632181ba055be0 Reviewed-on: https://chromium-review.googlesource.com/1120089 Commit-Queue: Yoshiki Iguchi <yoshiki@chromium.org> Reviewed-by: Ilya Sherman <isherman@chromium.org> Reviewed-by: Tetsui Ohkubo <tetsui@chromium.org> Cr-Commit-Position: refs/heads/master@{#576014} [modify] https://crrev.com/51e17067fa4ce5d2ba7c07480a3823b0d6fe0b7c/ash/BUILD.gn [add] https://crrev.com/51e17067fa4ce5d2ba7c07480a3823b0d6fe0b7c/ash/message_center/message_center_scroll_bar.cc [add] https://crrev.com/51e17067fa4ce5d2ba7c07480a3823b0d6fe0b7c/ash/message_center/message_center_scroll_bar.h [modify] https://crrev.com/51e17067fa4ce5d2ba7c07480a3823b0d6fe0b7c/ash/message_center/message_center_view.cc [modify] https://crrev.com/51e17067fa4ce5d2ba7c07480a3823b0d6fe0b7c/ash/system/unified/unified_message_center_view.cc [modify] https://crrev.com/51e17067fa4ce5d2ba7c07480a3823b0d6fe0b7c/tools/metrics/histograms/enums.xml [modify] https://crrev.com/51e17067fa4ce5d2ba7c07480a3823b0d6fe0b7c/tools/metrics/histograms/histograms.xml
Comment 1 by yoshiki@chromium.org
, Jul 2