Bug 1641270 - Part 4: Expose the cookieJarSettings to the browser object. r=dimi

Differential Revision: https://phabricator.services.mozilla.com/D95614

dom/chrome-webidl/WindowGlobalActors.webidl

@@ -76,6 +76,7 @@ interface WindowGlobalParent : WindowContext {
   readonly attribute Principal? contentBlockingAllowListPrincipal;
   readonly attribute URI? documentURI;
   readonly attribute DOMString documentTitle;
+  readonly attribute nsICookieJarSettings? cookieJarSettings;
 
   // Bit mask containing content blocking events that are recorded in
   // the document's content blocking log.

dom/ipc/WindowGlobalParent.h

@@ -179,6 +179,10 @@ class WindowGlobalParent final : public WindowContext,
 
   nsICookieJarSettings* CookieJarSettings() { return mCookieJarSettings; }
 
+  nsICookieJarSettings* GetCookieJarSettings() const {
+    return mCookieJarSettings;
+  }
+
   bool DocumentHasLoaded() { return mDocumentHasLoaded; }
 
   bool DocumentHasUserInteracted() { return mDocumentHasUserInteracted; }

toolkit/content/widgets/browser-custom-element.js

@@ -630,6 +630,12 @@
         .contentBlockingAllowListPrincipal;
     }
 
+    get cookieJarSettings() {
+      return this.isRemoteBrowser
+        ? this.contentDocument.cookieJarSettings
+        : this.browsingContext?.currentWindowGlobal?.cookieJarSettings;
+    }
+
     get csp() {
       return this.isRemoteBrowser ? this._csp : this.contentDocument.csp;
     }