Bug 1836166 - add telemetry for Mozilla Sync sign in

app/metrics.yaml

@@ -3789,7 +3789,25 @@ sync_account:
     metadata:
       tags:
         - SendTab
-
+settings:
+  sign_into_sync:
+    type: counter
+    description: |
+      Counts the number of times a user has clicked "sign into sync" from the settings page.
+    bugs:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1836166
+    data_reviews:
+      - https://github.com/mozilla-mobile/firefox-android/pull/2550
+    data_sensitivity:
+      - interaction
+    notification_emails:
+      - android-probes@mozilla.com
+      - cgordon@mozilla.com
+    expires: never
+    metadata:
+      tags:
+        - Sync
+        - Settings
 history:
   opened:
     type: event
@@ -6414,7 +6432,25 @@ top_sites:
     metadata:
       tags:
         - Shortcuts
-
+app_menu:
+  sign_into_sync:
+    type: counter
+    description: |
+      Counts the number of times a user has clicked "sign into sync" from the settings page.
+    bugs:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1836166
+    data_reviews:
+      - https://github.com/mozilla-mobile/firefox-android/pull/2550
+    data_sensitivity:
+      - interaction
+    notification_emails:
+      - android-probes@mozilla.com
+      - cgordon@mozilla.com
+    expires: never
+    metadata:
+      tags:
+        - Sync
+        - Settings
 app_theme:
   dark_theme_selected:
     type: event

app/src/main/java/org/mozilla/fenix/components/toolbar/BrowserToolbarMenuController.kt

@@ -29,6 +29,7 @@ import mozilla.components.feature.top.sites.TopSite
 import mozilla.components.service.glean.private.NoExtras
 import mozilla.components.support.base.feature.ViewBoundFeatureWrapper
 import mozilla.components.ui.widgets.withCenterAlignedButtons
+import org.mozilla.fenix.GleanMetrics.AppMenu
 import org.mozilla.fenix.GleanMetrics.Collections
 import org.mozilla.fenix.GleanMetrics.Events
 import org.mozilla.fenix.GleanMetrics.ReaderMode
@@ -444,8 +445,10 @@ class DefaultBrowserToolbarMenuController(
                 Events.browserMenuAction.record(Events.BrowserMenuActionExtra("add_to_top_sites"))
             is ToolbarMenu.Item.AddToHomeScreen ->
                 Events.browserMenuAction.record(Events.BrowserMenuActionExtra("add_to_homescreen"))
-            is ToolbarMenu.Item.SyncAccount ->
+            is ToolbarMenu.Item.SyncAccount -> {
                 Events.browserMenuAction.record(Events.BrowserMenuActionExtra("sync_account"))
+                AppMenu.signIntoSync.add()
+            }
             is ToolbarMenu.Item.Bookmark ->
                 Events.browserMenuAction.record(Events.BrowserMenuActionExtra("bookmark"))
             is ToolbarMenu.Item.AddonsManager ->

app/src/main/java/org/mozilla/fenix/settings/SettingsFragment.kt

@@ -63,6 +63,7 @@ import org.mozilla.fenix.perf.ProfilerViewModel
 import org.mozilla.fenix.settings.account.AccountUiView
 import org.mozilla.fenix.utils.Settings
 import kotlin.system.exitProcess
+import org.mozilla.fenix.GleanMetrics.Settings as SettingsMetrics
 
 @Suppress("LargeClass", "TooManyFunctions")
 class SettingsFragment : PreferenceFragmentCompat() {
@@ -255,6 +256,7 @@ class SettingsFragment : PreferenceFragmentCompat() {
 
         val directions: NavDirections? = when (preference.key) {
             resources.getString(R.string.pref_key_sign_in) -> {
+                SettingsMetrics.signIntoSync.add()
                 SettingsFragmentDirections.actionSettingsFragmentToTurnOnSyncFragment(
                     entrypoint = FenixFxAEntryPoint.SettingsMenu,
                 )