commit 9bc2ed789a17ebf37637c2b7caea279134c0be3c
author Samuel Huang <huangs@chromium.org> Tue Jun 04 19:37:34 2024
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> Tue Jun 04 19:37:34 2024
tree a3be106313a9f534d215a21d99cfa1c12fd84089
parent 88b84af79b96b3b311d0cef8fd1041557e96704a

[Android TRM] Add histograms for suggestion recency.

This CL adds the histograms
  MagicStack.Clank.TabResumption.TabRecency.Show
  MagicStack.Clank.TabResumption.TabRecency.Click

to record the recency of each suggestion tile on show / click. Here,
recency is the duration from a tile's tab's last active time to the
time when the tile is rendered. This also holds for the click case,
i.e., recency is *unrelated* to the time when the click takes place.

Details:
* Add the 2 new histograms.
* MetricsUtils: Add recordTabRecency{Show,Click}().
* View: renderAllTiles():
  * Pull recency computation from {loadLocalTabSingle(),loadTileTexts()}
    to dedup and to allow use by metrics.
  * Call recordTabRecencyShow().
  * Wrap click callback to call recordTabRecencyClick().

Bug: 344642375
Change-Id: Ia6fcca6fce1a4875e46998cce0bfd5e12e4315fc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5593815
Commit-Queue: Samuel Huang <huangs@chromium.org>
Reviewed-by: Calder Kitagawa <ckitagawa@chromium.org>
Code-Coverage: findit-for-me@appspot.gserviceaccount.com <findit-for-me@appspot.gserviceaccount.com>
Reviewed-by: Xi Han <hanxi@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1310113}