[Start] Build histograms for click rates of Menu button on Start and NTP
We added a new metric to the two histograms (StartSurface.Module.Click and NewTabPage.Module.Click) in this CL. This metric keeps track of the number of times a user clicks on the menu button on Start/NTP. The histogram StartSurface.Module.Click is updated with label "Menu button" each time a user clicks on the menu button on Start surface. The histogram NewTabPage.Module.Click is updated with label "Menu button" each time a user clicks on the menu button on New tab page.
Bug: 1384156
Change-Id: I3ec315fa5b6614dbdc510e2f02a20c908f031407
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4418189
Reviewed-by: Theresa Sullivan <twellington@chromium.org>
Reviewed-by: Weilun Shi <sweilun@chromium.org>
Code-Coverage: Findit <findit-for-me@appspot.gserviceaccount.com>
Commit-Queue: Xinyi Ji <xinyiji@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1131602}
NOKEYCHECK=True
GitOrigin-RevId: 6d56b9a9f67dfa0a5ad0ba1a34b359e1f2904926
3 files changed
