Bug 1641270 - Part 1: Expose cookieJarSettings to UI code through Document. r=smaug,dimi

Differential Revision: https://phabricator.services.mozilla.com/D95611

dom/bindings/Bindings.conf

@@ -1943,3 +1943,5 @@ addExternalIface('nsIPermissionDelegateHandler',
                  notflattened=True)
 addExternalIface('nsIOpenWindowInfo', nativeType='nsIOpenWindowInfo',
                  notflattened=True)
+addExternalIface('nsICookieJarSettings', nativeType='nsICookieJarSettings',
+                 notflattened=True)

dom/webidl/Document.webidl

@@ -23,6 +23,7 @@ interface URI;
 interface nsIDocShell;
 interface nsILoadGroup;
 interface nsIReferrerInfo;
+interface nsICookieJarSettings;
 interface nsIPermissionDelegateHandler;
 interface XULCommandDispatcher;
 
@@ -400,6 +401,10 @@ partial interface Document {
   [ChromeOnly]
   readonly attribute Principal partitionedPrincipal;
 
+  // The cookieJarSettings of this document
+  [ChromeOnly]
+  readonly attribute nsICookieJarSettings cookieJarSettings;
+
   // The principal to use for the content blocking allow list
   [ChromeOnly]
   readonly attribute Principal? contentBlockingAllowListPrincipal;

netwerk/cookie/nsICookieJarSettings.idl

@@ -12,7 +12,7 @@ interface nsIPrincipal;
  * Cookie jar settings for top-level documents. Please see CookieJarSettings.h
  * for more details.
  */
-[builtinclass, uuid(3ec40331-7cf0-4b71-ba2a-2265aab8f6bc)]
+[scriptable, builtinclass, uuid(3ec40331-7cf0-4b71-ba2a-2265aab8f6bc)]
 interface nsICookieJarSettings : nsISupports
 {
   /**