Add FXIOS-10666 Implement iOS "onboarding-opt-out" ping (#24101)

* Add FXIOS-10902 Firefox iOS: Send data deletion request when DAU ping is toggled off

* Update data review link

* Fix PR comments

firefox-ios/Client.xcodeproj/project.pbxproj

@@ -1137,6 +1137,7 @@
 		8CC6170B2C358BAC001C7688 /* ActionToast.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8CC6170A2C358BAC001C7688 /* ActionToast.swift */; };
 		8CCCB08B2AE26B5C0073ADB9 /* ReportResponse.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8CCCB08A2AE26B5C0073ADB9 /* ReportResponse.swift */; };
 		8CCD74732B90A945008F919B /* LoginListViewModelTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8CCD74722B90A945008F919B /* LoginListViewModelTests.swift */; };
+		8CDA04872D351783004C333C /* pings.yaml in Resources */ = {isa = PBXBuildFile; fileRef = 8CDA04862D351783004C333C /* pings.yaml */; };
 		8CE1E4322B8C76AE0026530B /* LoginStorage.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8CE1E4312B8C76AE0026530B /* LoginStorage.swift */; };
 		8CE1E4372B8C76C80026530B /* LoginAutofillView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8CE1E4332B8C76C80026530B /* LoginAutofillView.swift */; };
 		8CE1E4382B8C76C80026530B /* LoginListViewModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8CE1E4342B8C76C80026530B /* LoginListViewModel.swift */; };
@@ -7979,6 +7980,7 @@
 		8CCCB08A2AE26B5C0073ADB9 /* ReportResponse.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ReportResponse.swift; sourceTree = "<group>"; };
 		8CCD74722B90A945008F919B /* LoginListViewModelTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginListViewModelTests.swift; sourceTree = "<group>"; };
 		8CD04F1485CE61A3B3237248 /* hu */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = hu; path = hu.lproj/3DTouchActions.strings; sourceTree = "<group>"; };
+		8CDA04862D351783004C333C /* pings.yaml */ = {isa = PBXFileReference; lastKnownFileType = text.yaml; path = pings.yaml; sourceTree = "<group>"; };
 		8CE041B18298F668144B225A /* es */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = es; path = es.lproj/Menu.strings; sourceTree = "<group>"; };
 		8CE1E4312B8C76AE0026530B /* LoginStorage.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginStorage.swift; sourceTree = "<group>"; };
 		8CE1E4332B8C76C80026530B /* LoginAutofillView.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LoginAutofillView.swift; sourceTree = "<group>"; };
@@ -14359,6 +14361,7 @@
 				7B2142FC1E5E055000CDD3FC /* InfoPlist.strings */,
 				74821FFD1DB6D3AC00EEEA72 /* MailSchemes.plist */,
 				ACD605D124B35EEE00EE4454 /* metrics.yaml */,
+				8CDA04862D351783004C333C /* pings.yaml */,
 				C87D8B7E2818331900A6307D /* Nimbus */,
 				DFACDFAD274D4D4B00A94EEC /* Protocols */,
 				216A0D6F2A40D0E4008077BA /* Redux */,
@@ -15653,6 +15656,7 @@
 				43175DB626B8774D00C41C31 /* Ads.js in Resources */,
 				D0FCF8081FE4772D004A7995 /* MainFrameAtDocumentStart.js in Resources */,
 				D30684F11C84F12A002D8D82 /* SearchPlugins in Resources */,
+				8CDA04872D351783004C333C /* pings.yaml in Resources */,
 				8A5CDEED27E510F500CC60FF /* pocketglobalfeed.json in Resources */,
 				8A1A93582B757C7C0069C190 /* gradient.json in Resources */,
 				74821FFE1DB6D3AC00EEEA72 /* MailSchemes.plist in Resources */,

firefox-ios/Client/Frontend/Onboarding/Views/PrivacyPreferencesViewController.swift

@@ -6,6 +6,7 @@ import UIKit
 import Common
 import ComponentLibrary
 import Shared
+import Glean
 
 final class PrivacyPreferencesViewController: UIViewController,
                                               Themeable,
@@ -168,6 +169,9 @@ final class PrivacyPreferencesViewController: UIViewController,
 
         technicalDataSwitch.switchCallback = { [weak self] value in
             self?.profile.prefs.setBool(value, forKey: AppConstants.prefSendUsageData)
+            if !value {
+                GleanMetrics.Pings.shared.onboardingOptOut.submit()
+            }
             TermsOfServiceTelemetry().technicalInteractionDataSwitched(to: value)
         }
 

firefox-ios/Client/pings.yaml

@@ -91,3 +91,26 @@ usage-reporting:
     include_info_sections: false
     ping_schedule:
       - baseline
+
+onboarding-opt-out:
+  description: |
+    This ping is submitted when a user opts out of 
+    usage-reporting during the onboarding process. 
+    It is sent immediately upon opting out of Telemetry/Usage Tracking (T/UT) 
+    at ToS consent. This ping will only ever be sent during the 
+    initial onboarding flow. 
+    If the global telemetry preference is disabled, this ping 
+    includes specific settings to ensure it can still be submitted.
+  include_client_id: false
+  send_if_empty: true
+  bugs:
+    - https://mozilla-hub.atlassian.net/browse/FXIOS-10902
+  data_reviews:
+    - https://github.com/mozilla-mobile/firefox-ios/pull/24101
+  notification_emails:
+    - [email protected]
+    - [email protected]
+    - [email protected]
+  metadata:
+    follows_collection_enabled: false
+    include_info_sections: false