Bug 1724376 - Part 1: Add a new storage access grant reason for the privilege API. r=dimi,pbz

To differentiate the privilege API calls, we need to add a new grant
reason for it.

Differential Revision: https://phabricator.services.mozilla.com/D123803

toolkit/components/antitracking/AntiTrackingIPCUtils.h

@@ -27,7 +27,8 @@ struct ParamTraits<
           mozilla::ContentBlockingNotifier::
               StorageAccessPermissionGrantedReason::eStorageAccessAPI,
           mozilla::ContentBlockingNotifier::
-              StorageAccessPermissionGrantedReason::eOpener> {};
+              StorageAccessPermissionGrantedReason::
+                  ePrivilegeStorageAccessForOriginAPI> {};
 
 // ContentBlockingNotifier::BlockingDecision over IPC.
 template <>

toolkit/components/antitracking/ContentBlockingNotifier.cpp

@@ -73,6 +73,7 @@ void ReportUnblockingToConsole(
 
         switch (aReason) {
           case ContentBlockingNotifier::eStorageAccessAPI:
+          case ContentBlockingNotifier::ePrivilegeStorageAccessForOriginAPI:
             messageWithSameOrigin = "CookieAllowedForOriginByStorageAccessAPI";
             break;
 

toolkit/components/antitracking/ContentBlockingNotifier.h

@@ -30,7 +30,8 @@ class ContentBlockingNotifier final {
   enum StorageAccessPermissionGrantedReason {
     eStorageAccessAPI,
     eOpenerAfterUserInteraction,
-    eOpener
+    eOpener,
+    ePrivilegeStorageAccessForOriginAPI,
   };
 
   // This method can be called on the parent process or on the content process.