For #20328 - Adds telemetry for recentlyClosed button

...from tabsTray, inactiveTabs section.

app/metrics.yaml

@@ -2798,6 +2798,19 @@ tabs_tray:
     notification_emails:
       - android-probes@mozilla.com
     expires: "2022-02-01"
+  inactive_tabs_recently_closed:
+    type: event
+    description: |
+      A user tapped the "Recently closed" option of the inactive tabs menu.
+    bugs:
+      - https://github.com/mozilla-mobile/fenix/issues/20328
+    data_reviews:
+      - https://github.com/mozilla-mobile/fenix/issues/20328
+    data_sensitivity:
+      - interaction
+    notification_emails:
+      - android-probes@mozilla.com
+    expires: "2022-08-01"
 
 collections:
   renamed:

app/src/main/java/org/mozilla/fenix/components/metrics/Event.kt

@@ -186,6 +186,7 @@ sealed class Event {
     object TabsTraySaveToCollectionPressed : Event()
     object TabsTrayShareAllTabsPressed : Event()
     object TabsTrayCloseAllTabsPressed : Event()
+    object TabsTrayRecentlyClosedPressed : Event()
 
     object ProgressiveWebAppOpenFromHomescreenTap : Event()
     object ProgressiveWebAppInstallAsShortcut : Event()

app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt

@@ -683,6 +683,9 @@ private val Event.wrapper: EventWrapper<*>?
         is Event.TabsTrayCloseAllTabsPressed -> EventWrapper<NoExtraKeys>(
             { TabsTray.closeAllTabs.record(it) }
         )
+        is Event.TabsTrayRecentlyClosedPressed -> EventWrapper<NoExtraKeys>(
+            { TabsTray.inactiveTabsRecentlyClosed.record(it) }
+        )
         is Event.AutoPlaySettingVisited -> EventWrapper<NoExtraKeys>(
             { Autoplay.visitedSetting.record(it) }
         )

app/src/main/java/org/mozilla/fenix/tabstray/TabsTrayController.kt

@@ -174,6 +174,8 @@ class DefaultTabsTrayController(
         dismissTray()
 
         navController.navigate(R.id.recentlyClosedFragment)
+
+        metrics.track(Event.TabsTrayRecentlyClosedPressed)
     }
 
     /**

app/src/test/java/org/mozilla/fenix/components/metrics/GleanMetricsServiceTest.kt

@@ -249,6 +249,10 @@ class GleanMetricsServiceTest {
         assertFalse(TabsTray.closeAllTabs.testHasValue())
         gleanService.track(Event.TabsTrayCloseAllTabsPressed)
         assertTrue(TabsTray.closeAllTabs.testHasValue())
+
+        assertFalse(TabsTray.inactiveTabsRecentlyClosed.testHasValue())
+        gleanService.track(Event.TabsTrayRecentlyClosedPressed)
+        assertTrue(TabsTray.inactiveTabsRecentlyClosed.testHasValue())
     }
 
     @Test