diff -r 000000000000 -r 6474c204b198 xpcom/glue/nsMemory.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xpcom/glue/nsMemory.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,48 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+#include "nsXPCOM.h"
+#include "nsMemory.h"
+#include "nsIMemory.h"
+#include "nsXPCOMPrivate.h"
+#include "nsDebug.h"
+#include "nsISupportsUtils.h"
+#include "nsCOMPtr.h"
+
+////////////////////////////////////////////////////////////////////////////////
+// nsMemory static helper routines
+
+NS_COM_GLUE nsresult
+nsMemory::HeapMinimize(bool aImmediate)
+{
+    nsCOMPtr<nsIMemory> mem;
+    nsresult rv = NS_GetMemoryManager(getter_AddRefs(mem));
+    if (NS_WARN_IF(NS_FAILED(rv)))
+        return rv;
+
+    return mem->HeapMinimize(aImmediate);
+}
+
+NS_COM_GLUE void*
+nsMemory::Clone(const void* ptr, size_t size)
+{
+    void* newPtr = NS_Alloc(size);
+    if (newPtr)
+        memcpy(newPtr, ptr, size);
+    return newPtr;
+}
+
+NS_COM_GLUE nsIMemory*
+nsMemory::GetGlobalMemoryService()
+{
+    nsIMemory* mem;
+    nsresult rv = NS_GetMemoryManager(&mem);
+    if (NS_FAILED(rv)) return nullptr;
+   
+    return mem;
+}
+
+//----------------------------------------------------------------------
+