Bug 1921440 - Define new dau-reporting ping and contained metrics r=frank,data-stewards,TravisLong

This change allows us to offer Firefox users more granular choices in data collection.

Differential Revision: https://phabricator.services.mozilla.com/D225200

browser/modules/metrics.yaml

@@ -28,10 +28,12 @@ browser.engagement:
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1741674
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1755050
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1781578
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1921440
     data_reviews:
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1545172#c8
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1781578
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1811152#c5
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1921440
     data_sensitivity:
       - interaction
     notification_emails:
@@ -40,6 +42,7 @@ browser.engagement:
     send_in_pings:
       - baseline
       - metrics
+      - dau-reporting
     no_lint:
       - BASELINE_PING
 
@@ -57,10 +60,12 @@ browser.engagement:
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1741674
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1755050
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1781578
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1921440
     data_reviews:
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1535169#c14
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1781578
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1811152#c5
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1921440
     data_sensitivity:
       - interaction
     notification_emails:
@@ -69,6 +74,7 @@ browser.engagement:
     send_in_pings:
       - baseline
       - metrics
+      - dau-reporting
     no_lint:
       - BASELINE_PING
 

toolkit/components/glean/pings.yaml

@@ -12,3 +12,31 @@
 
 ---
 $schema: moz://mozilla.org/schemas/glean/pings/2-0-0
+
+dau-reporting:
+  description: |
+    Minimal ping to measure DAU.
+    Sent on the baseline schedule.
+  include_client_id: true
+  send_if_empty: true
+  bugs:
+    - https://bugzilla.mozilla.org/show_bug.cgi?id=1921440
+  data_reviews:
+    - https://bugzilla.mozilla.org/show_bug.cgi?id=1921440
+  notification_emails:
+    - glean-team@mozilla.com
+    - jrediger@mozilla.com
+    - fbertsch@mozilla.com
+  reasons:
+    dirty_startup: |
+      The ping was submitted at startup, because the application process was
+      killed before the Glean SDK had the chance to generate this ping, before
+      becoming inactive, in the last session.
+    inactive: |
+      The ping was submitted when becoming inactive.
+    active: |
+      The ping was submitted when the application became active again,
+      which includes when the application starts.
+  metadata:
+    ping_schedule:
+      - baseline

toolkit/components/telemetry/metrics.yaml

@@ -26,8 +26,10 @@ legacy.telemetry:
       Does not need to be sent in the Glean "deletion-request" ping.
     bugs:
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1755549
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1921440
     data_reviews:
       - https://bugzilla.mozilla.org/show_bug.cgi?id=1755549
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1921440
     data_sensitivity:
       - technical
       - highly_sensitive
@@ -42,6 +44,7 @@ legacy.telemetry:
       - 'events'
       - 'newtab'
       - 'baseline'
+      - 'dau-reporting'
 
   profile_group_id:
     type: uuid