diff -r 000000000000 -r 6474c204b198 caps/src/nsNullPrincipalURI.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/caps/src/nsNullPrincipalURI.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=2 sts=2 expandtab
+ * 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/. */
+
+/**
+ * This wraps nsSimpleURI so that all calls to it are done on the main thread.
+ */
+
+#ifndef __nsNullPrincipalURI_h__
+#define __nsNullPrincipalURI_h__
+
+#include "nsIURI.h"
+#include "nsISizeOf.h"
+#include "nsAutoPtr.h"
+#include "nsString.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/MemoryReporting.h"
+
+// {51fcd543-3b52-41f7-b91b-6b54102236e6}
+#define NS_NULLPRINCIPALURI_IMPLEMENTATION_CID \
+  {0x51fcd543, 0x3b52, 0x41f7, \
+    {0xb9, 0x1b, 0x6b, 0x54, 0x10, 0x22, 0x36, 0xe6} }
+
+class nsNullPrincipalURI MOZ_FINAL : public nsIURI
+                                   , public nsISizeOf
+{
+public:
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSIURI
+
+  // nsISizeOf
+  virtual size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
+  virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
+
+  nsNullPrincipalURI(const nsCString &aSpec);
+
+private:
+  nsCString mScheme;
+  nsCString mPath;
+};
+
+#endif // __nsNullPrincipalURI_h__