The schema introduces a new field called `hovercardsSuppressedByGadget`,
which is `true` when the Navigation Popups gadget, rather than the Popups
extensions, is being used to fetch and display article summary.
Note that it may take some time before the Navigation Popups gadget is
loaded onto the page, thus actions taking place before this happens will
record the value of `hovercardsSuppressedByGadget` as `false`. This is
mostly the case with the `pageLoaded` action which almost always happens
before the gadget code is loaded.
Bug: T137203
Change-Id: Ie31deea7ae2323d6a346c67ed84fdf587ad55bd1
This action was sent correctly when popups are enabled, but not when
disabled. This commit sends this event also when popups are disabled
so that we are able to compare the metric with popups enabled vs disabled.
Additional changes:
* Chain events in resources/ext.popups.targets/desktopTarget.js
* Add a separate property to the list of defaults and fix formatting.
Bug: T131315
Change-Id: I426f0a1a735b8fe6b16f3d2695d9099dd0d0469b