1 files changed, 39 insertions, 0 deletions
diff --git a/browser/components/sessionstore/nsSessionStore.js b/browser/components/sessionstore/nsSessionStore.js
new file mode 100644
index 000000000..8d96178ce
--- /dev/null
+++ b/browser/components/sessionstore/nsSessionStore.js
@@ -0,0 +1,39 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Session Storage and Restoration
+ *
+ * Overview
+ * This service keeps track of a user's session, storing the various bits
+ * required to return the browser to its current state. The relevant data is
+ * stored in memory, and is periodically saved to disk in a file in the
+ * profile directory. The service is started at first window load, in
+ * delayedStartup, and will restore the session from the data received from
+ * the nsSessionStartup service.
+ */
+
+const Cu = Components.utils;
+const Ci = Components.interfaces;
+
+Cu.import("resource://gre/modules/XPCOMUtils.jsm");
+Cu.import("resource:///modules/sessionstore/SessionStore.jsm");
+
+function SessionStoreService() {}
+
+// The SessionStore module's object is frozen. We need to modify our prototype
+// and add some properties so let's just copy the SessionStore object.
+Object.keys(SessionStore).forEach(function (aName) {
+  let desc = Object.getOwnPropertyDescriptor(SessionStore, aName);
+  Object.defineProperty(SessionStoreService.prototype, aName, desc);
+});
+
+SessionStoreService.prototype.classID =
+  Components.ID("{5280606b-2510-4fe0-97ef-9b5a22eafe6b}");
+SessionStoreService.prototype.QueryInterface =
+  XPCOMUtils.generateQI([Ci.nsISessionStore]);
+
+this.NSGetFactory = XPCOMUtils.generateNSGetFactory([SessionStoreService]);