1 files changed, 0 insertions, 50 deletions
diff --git a/browser/components/sessionstore/DocShellCapabilities.jsm b/browser/components/sessionstore/DocShellCapabilities.jsm
deleted file mode 100644
index 098aae86f..000000000
--- a/browser/components/sessionstore/DocShellCapabilities.jsm
+++ /dev/null
@@ -1,50 +0,0 @@
-/* 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";
-
-this.EXPORTED_SYMBOLS = ["DocShellCapabilities"];
-
-/**
- * The external API exported by this module.
- */
-this.DocShellCapabilities = Object.freeze({
-  collect: function (docShell) {
-    return DocShellCapabilitiesInternal.collect(docShell);
-  },
-
-  restore: function (docShell, disallow) {
-    return DocShellCapabilitiesInternal.restore(docShell, disallow);
-  },
-});
-
-/**
- * Internal functionality to save and restore the docShell.allow* properties.
- */
-var DocShellCapabilitiesInternal = {
-  // List of docShell capabilities to (re)store. These are automatically
-  // retrieved from a given docShell if not already collected before.
-  // This is made so they're automatically in sync with all nsIDocShell.allow*
-  // properties.
-  caps: null,
-
-  allCapabilities: function (docShell) {
-    if (!this.caps) {
-      let keys = Object.keys(docShell);
-      this.caps = keys.filter(k => k.startsWith("allow")).map(k => k.slice(5));
-    }
-    return this.caps;
-  },
-
-  collect: function (docShell) {
-    let caps = this.allCapabilities(docShell);
-    return caps.filter(cap => !docShell["allow" + cap]);
-  },
-
-  restore: function (docShell, disallow) {
-    let caps = this.allCapabilities(docShell);
-    for (let cap of caps)
-      docShell["allow" + cap] = !disallow.has(cap);
-  },
-};