Add storage access API (#1032)

This is a Baseline 2023 feature.

features/storage-access.dist.yml

@@ -0,0 +1,26 @@
+# Generated from: storage-access.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+name: Storage access
+description: The `document.requestStorageAccess()` method allows content in iframes to request storing and reading cookies and other site data, while the `document.hasStorageAccess()` method checks if such access is granted.
+spec: https://privacycg.github.io/storage-access/
+usage_stats:
+  - https://chromestatus.com/metrics/feature/timeline/popularity/3310 # hasStorageAccess
+  - https://chromestatus.com/metrics/feature/timeline/popularity/3311 # requestStorageAccess
+status:
+  baseline: low
+  baseline_low_date: 2023-12-05
+  support:
+    chrome: "119"
+    chrome_android: "120"
+    edge: "85"
+    firefox: "65"
+    firefox_android: "65"
+    safari: "11.1"
+    safari_ios: "11.3"
+# Note that document.requestStorageAccessFor() is defined in
+# https://privacycg.github.io/requestStorageAccessFor/ and has a different
+# implementation history.
+compat_features:
+  - api.Document.hasStorageAccess
+  - api.Document.requestStorageAccess

features/storage-access.yml

@@ -0,0 +1,12 @@
+name: Storage access
+description: The `document.requestStorageAccess()` method allows content in iframes to request storing and reading cookies and other site data, while the `document.hasStorageAccess()` method checks if such access is granted.
+spec: https://privacycg.github.io/storage-access/
+usage_stats:
+  - https://chromestatus.com/metrics/feature/timeline/popularity/3310 # hasStorageAccess
+  - https://chromestatus.com/metrics/feature/timeline/popularity/3311 # requestStorageAccess
+# Note that document.requestStorageAccessFor() is defined in
+# https://privacycg.github.io/requestStorageAccessFor/ and has a different
+# implementation history.
+compat_features:
+  - api.Document.hasStorageAccess
+  - api.Document.requestStorageAccess