The following histograms are present in Chromium source code but do not
appear in histograms.xml.

Mouse.PrimaryButtonRight.Changed defined at
chrome/browser/chromeos/preferences.cc line 570
https://cs.chromium.org/chromium/src/chrome/browser/chromeos/preferences.cc?l=570

Mouse.PrimaryButtonRight.Started defined at
chrome/browser/chromeos/preferences.cc line 572
https://cs.chromium.org/chromium/src/chrome/browser/chromeos/preferences.cc?l=572

File and line information may be out-of-date by the time you read this.

Please remove these histograms from the source code. If they were very
recently added, it may be worth adding them to histograms.xml instead, but
probably not.

This bug was automatically assigned based on git blame information. If you
are not the correct assignee for this bug, please delete the histograms
anyway.