[Telemetry] Picture in Picture

[vesta0]

Description & Product Manager / Data Scientist User Story

As a product manager, I want to understand how often users discover and enable the picture in picture feature.

What questions will you answer with this data?

• How often (and what % of users) watch a video in full screen?
• How often (and what % of users) enable the picture in picture mode by minimizing a tap playing full screen video?

Acceptance Criteria

• ENG files a DS JIRA request outlining their methodology.
• DS sign off on instrumentation methodology addressing product questions.
• Event pings can be queried via re:dash
• Event pings can be queried via amplitude
• We are sending telemetry events for the actions listed in the requirements
• We have documented the telemetry
• We have asked a data steward to review the telemetry

┆Issue is synchronized with this Jira Task

[Mugurell]

Talked offline with Kate who confirmed with DS and Boek:

• The newly added metrics should log events, not counters anymore
• An an expiration date 6 months is preferred.
  Maybe if there is already related telemetry for that part of the screen / feature we can reuse the existing expiration date so that all related telemetry probes will be renewed at the same time.

[AndiAJ]

Hi, verified as fixed on the latest Nightly 201216 using a Google Pixel 3a (Android 11)

Ping c181bff3-1713-43ef-ba91-302a16a7608d

► ✔️ Full screen event

{
         "category": "media_state",
         "name": "fullscreen",
         "timestamp": 19186
       }

► ✔️ Enable the picture in picture mode

{
          "category": "media_state",
          "name": "picture_in_picture",
          "timestamp": 21987
        }

Logcat
Glean dashboard