"Player_view" event is wrongly displayed in the ping content if closing the player while on Replay/Close screen

[SoftVision-CarmenFat]

[Affected versions]:

• Firefox Developer Edition 59.0b7
• Firefox Nightly 60.0a1 (02/08/2018)
• Min-Vid Shield Study Onboarding 0.4.7 - Shield Study

[Affected Platforms]:

• All Windows

[Prerequisites]:

• Latest Min-Vid v.0.4.7 Shield Study Onboarding ("active" or "activeAndOnboarding" variant) was previously installed on a clean profile.

[Steps to reproduce]:

1. Open the browser with the profiles from prerequisites and navigate to YouTube.
2. Send a video to the mini player and fast forward it to its end.
3. Click on the "x" button from the top left part of the player.
4. Go to "about:telemetry" and observe the event from the ping generated for closing the player.

[Expected result]:

• "replay_view" event is displayed.

[Actual result]:

• "player_view" event is displayed.

[Notes]:

• This is not reproducible when closing the player while in the Error view state.
• This is not reproducible if closing the player using the "x" button from the player's content space.
• Here is a screen recording of the issue:

[SoftVision-CarmenFat]

This issue is no longer reproducible on the latest Shield Study build.