Add protected-audience and ad-selection features (#2635)

Co-authored-by: Patrick Brosset <patrickbrosset@gmail.com>

Author: ddbeck

features/ad-selection.yml

@@ -0,0 +1,14 @@
+name: Ad selection
+description: The Ad Selection API facilitates advertisement sales by allowing sites to register users as part of an interest group or to choose which ads appear based on those interest groups, while minimizing the ability of advertisers to track specific members of the interest group.
+spec: https://github.com/WICG/privacy-preserving-ads
+discouraged:
+  removal_date: 2026-06-01
+  reason: Following the announcement that Chrome will maintain its current approach to third-party cookies, Chrome decided to withdraw certain Privacy Sandbox features including the protected audience API, which shares some interfaces with the ad selection API.
+  according_to:
+    - https://groups.google.com/a/chromium.org/g/blink-dev/c/k_nubsMb97g/m/aAp_5MTXBQAJ
+    - https://chromestatus.com/feature/6552486106234880
+# Uncomment when overlapping keys are allowed, https://github.com/web-platform-dx/web-features/issues/1173
+# compat_features:
+#   - api.Navigator.getInterestGroupAdAuctionData
+#   - api.Navigator.runAdAuction
+#   - api.Navigator.joinAdInterestGroup

features/ad-selection.yml.dist

@@ -0,0 +1,6 @@
+# Generated from: ad-selection.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}

features/draft/spec/turtledove.yml

@@ -0,0 +1,30 @@
+name: Protected audience
+description: The protected audience API facilitates advertisement sales by allowing sites to register users as part of an interest group or to choose which ads appear based on those interest groups, while minimizing the ability of advertisers to track specific members of the interest group. Also known as FLEDGE.
+spec: https://wicg.github.io/turtledove/
+discouraged:
+  removal_date: 2026-06-01 # Chrome 150
+  reason: Following the announcement that Chrome will maintain its current approach to third-party cookies, Chrome decided to withdraw certain Privacy Sandbox features including the protected audience API.
+  according_to:
+    - https://groups.google.com/a/chromium.org/g/blink-dev/c/k_nubsMb97g/m/aAp_5MTXBQAJ
+    - https://chromestatus.com/feature/6552486106234880
+# TODO: remove this override when https://github.com/mdn/browser-compat-data/pull/29723 merges and appears in a BCD release
+status:
+  baseline: false
+  support:
+    chrome: "134"
+    chrome_android: "134"
+compat_features:
+  - api.HTMLIFrameElement.adAuctionHeaders
+  - api.Navigator.canLoadAdAuctionFencedFrame
+  - api.Navigator.clearOriginJoinedAdInterestGroups
+  - api.Navigator.createAuctionNonce
+  - api.Navigator.deprecatedRunAdAuctionEnforcesKAnonymity
+  - api.Navigator.getInterestGroupAdAuctionData
+  - api.Navigator.joinAdInterestGroup
+  - api.Navigator.leaveAdInterestGroup
+  - api.Navigator.protectedAudience
+  - api.Navigator.runAdAuction
+  - api.Navigator.updateAdInterestGroups
+  - api.ProtectedAudience
+  - api.ProtectedAudience.queryFeatureSupport
+  - api.SharedStorageWorkletGlobalScope.interestGroups

features/protected-audience.yml

@@ -1,12 +1,6 @@
-# Generated from: turtledove.yml
+# Generated from: protected-audience.yml
 # Do not edit this file by hand. Edit the source file instead!
 
-status:
-  baseline: false
-  support:
-    chrome: "132"
-    chrome_android: "132"
-    edge: "132"
 compat_features:
   # baseline: false
   # support:
@@ -38,10 +32,16 @@ compat_features:
   - api.Navigator.runAdAuction
   - api.Navigator.updateAdInterestGroups
 
-  # ⬇️ Same status as overall feature ⬇️
   # baseline: false
   # support:
   #   chrome: "132"
   #   chrome_android: "132"
   #   edge: "132"
   - api.Navigator.getInterestGroupAdAuctionData
+
+  # baseline: false
+  # support:
+  #   chrome: "134"
+  #   chrome_android: "134"
+  #   edge: "134"
+  - api.SharedStorageWorkletGlobalScope.interestGroups

features/draft/spec/turtledove.yml.dist features/protected-audience.yml.distfeatures/draft/spec/turtledove.yml.dist renamed to features/protected-audience.yml.dist

@@ -231,6 +231,14 @@ const defaultAllowlist: allowlistItem[] = [
     [
         "https://github.com/WICG/PEPC/blob/main/usermedia_element.md",
         "Replace with https://w3c.github.io/mediacapture-extensions/#the-usermedia-html-element when https://github.com/w3c/mediacapture-extensions/pull/168 merges."
+    ],
+    [
+        "https://github.com/WICG/privacy-preserving-ads",
+        "Discontinued spec allowed for discouraged feature."
+    ],
+    [
+        "https://wicg.github.io/turtledove/",
+        "Discontinued spec allowed for discouraged feature."
     ]
 ];