[Telemetry] Include state of preferenceToggled events in metrics ping

[sblatz]

We would also like to include documentation about the default state of each toggle somewhere in the metrics.md or elsewhere so data science can consult it when doing analysis.

┆Issue is synchronized with this Jira Task

[AndiAJ]

Hi @sblatz , I've just checked this matter on the latest Nightly build 200611 from 6/11 using a Google Pixel 3a (Android 10)

Status	Description	Notes
❓	"preferences.sync"	Not sure what does it stand for. It's always set to false
✔️	"preferences.sync_items"
✔️	"metrics.toolbar_position"
✔️	"preferences.show_search_shortcuts"
✔️	"preferences.show_clipboard_suggestions"
❌	pref_key_search_browsing_history	Not included in the metrics ping
✔️	"preferences.search_bookmarks"
❌	pref_key_show_voice_search	Not included in the metrics ping
✔️	"preferences.show_search_suggestions"
✔️	"preferences.search_suggestions_private"
✔️	"preferences.open_links_in_a_private_tab"
✔️	"preferences.tracking_protection"
✔️	"preferences.telemetry"
✔️	"preferences.remote_debugging"
✔️	"preferences.accessibility_services"

Logacat
Glean dashboard

Logcat ("touch exploration")
Glean dashboard

As per #11118 you've also mentioned the position of the position of the Toolbar, which as you can see is properly displayed in the metrics pings
On the other hand, I've noticed that nothing is displayed regarding the Theme setting.
Should this be included?

Please review. ☺️

[sblatz]

Thanks for verifying @AndiAJ! Sync sounds right (given you're probably not signed in. If you're singed in to FxA then it should say the items you're syncing, if you'd like to test that portion!)

pref_key_show_voice_search, theme should be included now!

I'm putting up a PR now ot include searchBrowsingHistory as well.

[sblatz]

This is ready to test now!

[AndiAJ]

Hi @sblatz , verified as fixed on the latest Nightly build 200615 from 6/15 Google Pixel 3a (Android 10)

Status	Description
✔️	"preferences.sync_items"
✔️	"metrics.toolbar_position"
✔️	"preferences.theme"
✔️	"preferences.show_search_shortcuts"
✔️	"preferences.show_clipboard_suggestions"
✔️	"preferences.search_browsing_history"
✔️	"preferences.search_bookmarks"
✔️	"preferences.show_voice_search"
✔️	"preferences.show_search_suggestions"
✔️	"preferences.search_suggestions_private"
✔️	"preferences.open_links_in_a_private_tab"
✔️	"preferences.tracking_protection"
✔️	"preferences.telemetry"
✔️	"preferences.remote_debugging"
✔️	"preferences.accessibility_services"

• Theme settings

"preferences.theme": [
            "light"
          ]

"preferences.theme": [
            "dark"
          ]

"preferences.theme": [
            "system"

          ]

Logcat
Glean dashboard

Logcat
Glean dashboard

Regarding the previously mentioned "preferences.sync" matter I've opened #11595