1338407 - Add telemetry for storage api preferences

Status: NEW

(Core :: DOM: Core & HTML, defect, P3)

Description

[Mark Liang(:mark_liang)]

View Full Documentation here: https://docs.google.com/document/d/1l512P6eqFhon7XFhavzM9DfOJ4JR2fFrHtHGLHLuVhk/edit#bookmark=id.ozpuqqb5b03e

How many users clicked “Settings” inside the Preferences > Advance > Site Data?
How many users clicked “Clear All Data” inside the Preferences > Advance > Site Data?

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What is the storage size overall distribution? (ex: % of websites have data stored between x MB and y MB)
What % of users change the site storage status (priority <-> temporary) and saved?
What % of users click “Cancel” directly(bounce rate)?
How long do users stay on this “Settings” panel?
What % of users used “Search” function?
What % of users sorted the list by Site / Status / Storage?
What % of users click “Remove All” / “Remove Selected”?

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After making changes and click “Save Changes”, what % of users click the drop down arrow to view more?
What % of users click “Cancel” / “Continue”?