fix(privacy): Add logic to record initial AdBlockSetting & FingerprintBlockSetting values

ios/brave-ios/Sources/Brave/Frontend/Browser/BrowserViewController/BVC+P3A.swift

@@ -134,8 +134,14 @@ extension BrowserViewController {
   }
 
   @MainActor func maybeRecordInitialShieldsP3A() {
-    if Preferences.Shields.initialP3AStateReported.value { return }
-    defer { Preferences.Shields.initialP3AStateReported.value = true }
+    // Increment this version if metrics in this function change
+    // so that all metrics can be re-reported after update.
+    let kCurrentReportRevision = 1
+    guard kCurrentReportRevision > Preferences.Shields.initialP3AStateReportedRevision.value else {
+      return
+    }
+    recordGlobalAdBlockShieldsP3A()
+    recordGlobalFingerprintingShieldsP3A()
     let buckets: [Bucket] = [
       0,
       .r(1...5),
@@ -146,6 +152,8 @@ extension BrowserViewController {
     ]
     recordShieldsLevelUpdateP3A(buckets: buckets)
     recordFinterprintProtectionP3A(buckets: buckets)
+
+    Preferences.Shields.initialP3AStateReportedRevision.value = kCurrentReportRevision
   }
 
   @MainActor private func recordShieldsLevelUpdateP3A(buckets: [Bucket]) {
@@ -184,6 +192,36 @@ extension BrowserViewController {
     )
   }
 
+  func recordGlobalAdBlockShieldsP3A() {
+    // Q46 What is the global ad blocking shields setting?
+    enum Answer: Int, CaseIterable {
+      case disabled = 0
+      case standard = 1
+      case aggressive = 2
+    }
+
+    let answer = { () -> Answer in
+      switch ShieldPreferences.blockAdsAndTrackingLevel {
+      case .disabled: return .disabled
+      case .standard: return .standard
+      case .aggressive: return .aggressive
+      }
+    }()
+
+    UmaHistogramEnumeration("Brave.Shields.AdBlockSetting", sample: answer)
+  }
+
+  func recordGlobalFingerprintingShieldsP3A() {
+    // Q47 What is the global fingerprinting shields setting?
+    enum Answer: Int, CaseIterable {
+      case disabled = 0
+      case standard = 1
+      case aggressive = 2
+    }
+    let answer: Answer = Preferences.Shields.fingerprintingProtection.value ? .standard : .disabled
+    UmaHistogramEnumeration("Brave.Shields.FingerprintBlockSetting", sample: answer)
+  }
+
   func recordDataSavedP3A(change: Int) {
     var dataSavedStorage = P3ATimedStorage<Int>.dataSavedStorage
     dataSavedStorage.add(

ios/brave-ios/Sources/Brave/Frontend/Browser/BrowserViewController/BrowserViewController.swift

@@ -3283,12 +3283,16 @@ extension BrowserViewController: PreferencesObserver {
       tabManager.reloadSelectedTab()
     case Preferences.General.enablePullToRefresh.key:
       tabManager.selectedTab?.updatePullToRefreshVisibility()
-    case ShieldPreferences.blockAdsAndTrackingLevelRaw.key,
-      Preferences.Shields.blockScripts.key,
+    case Preferences.Shields.blockScripts.key,
       Preferences.Shields.blockImages.key,
-      Preferences.Shields.fingerprintingProtection.key,
       Preferences.Shields.useRegionAdBlock.key:
       tabManager.reloadSelectedTab()
+    case ShieldPreferences.blockAdsAndTrackingLevelRaw.key:
+      tabManager.reloadSelectedTab()
+      recordGlobalAdBlockShieldsP3A()
+    case Preferences.Shields.fingerprintingProtection.key:
+      tabManager.reloadSelectedTab()
+      recordGlobalFingerprintingShieldsP3A()
     case Preferences.General.defaultPageZoomLevel.key:
       tabManager.allTabs.forEach({
         guard let url = $0.webView?.url else { return }

ios/brave-ios/Sources/Brave/Frontend/Settings/Features/ShieldsPrivacy/AdvancedShieldSettings.swift

@@ -65,9 +65,6 @@ import os
   @Published var adBlockAndTrackingPreventionLevel: ShieldLevel {
     didSet {
       ShieldPreferences.blockAdsAndTrackingLevel = adBlockAndTrackingPreventionLevel
-      if adBlockAndTrackingPreventionLevel != oldValue {
-        recordGlobalAdBlockShieldsP3A()
-      }
     }
   }
   @Published var httpsUpgradeLevel: HTTPSUpgradeLevel {
@@ -278,43 +275,5 @@ import os
         }
       }
       .store(in: &subscriptions)
-
-    Preferences.Shields.fingerprintingProtection.$value
-      .sink { [weak self] _ in
-        self?.recordGlobalFingerprintingShieldsP3A()
-      }
-      .store(in: &subscriptions)
-  }
-
-  // MARK: - P3A
-
-  private func recordGlobalAdBlockShieldsP3A() {
-    // Q46 What is the global ad blocking shields setting?
-    enum Answer: Int, CaseIterable {
-      case disabled = 0
-      case standard = 1
-      case aggressive = 2
-    }
-
-    let answer = { () -> Answer in
-      switch ShieldPreferences.blockAdsAndTrackingLevel {
-      case .disabled: return .disabled
-      case .standard: return .standard
-      case .aggressive: return .aggressive
-      }
-    }()
-
-    UmaHistogramEnumeration("Brave.Shields.AdBlockSetting", sample: answer)
-  }
-
-  private func recordGlobalFingerprintingShieldsP3A() {
-    // Q47 What is the global fingerprinting shields setting?
-    enum Answer: Int, CaseIterable {
-      case disabled = 0
-      case standard = 1
-      case aggressive = 2
-    }
-    let answer: Answer = Preferences.Shields.fingerprintingProtection.value ? .standard : .disabled
-    UmaHistogramEnumeration("Brave.Shields.FingerprintBlockSetting", sample: answer)
   }
 }

ios/brave-ios/Sources/Preferences/GlobalPreferences.swift

@@ -83,9 +83,9 @@ extension Preferences {
       default: false
     )
     /// Whether or not we've reported the initial state of shields for p3a
-    public static let initialP3AStateReported = Option<Bool>(
-      key: "shields.initial-p3a-state-reported",
-      default: false
+    public static let initialP3AStateReportedRevision = Option<Int>(
+      key: "shields.initial-p3a-state-reported-revision",
+      default: 0
     )
   }