diff -r 000000000000 -r 6474c204b198 dom/system/gonk/nsVolumeStat.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/system/gonk/nsVolumeStat.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,32 @@
+/* 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/. */
+
+#ifndef mozilla_system_nsvolumestat_h__
+#define mozilla_system_nsvolumestat_h__
+
+#include "nsIVolumeStat.h"
+#include "nsString.h"
+#include <sys/statfs.h>
+
+namespace mozilla {
+namespace system {
+
+class nsVolumeStat : public nsIVolumeStat
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIVOLUMESTAT
+
+  nsVolumeStat(const nsAString& aPath);
+
+private:
+  ~nsVolumeStat();
+
+  struct statfs mStat;
+};
+
+} // system
+} // mozilla
+
+#endif  // mozilla_system_nsvolumestat_h__