diff -r 000000000000 -r 6474c204b198 xpcom/sample/nsSampleModule.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/xpcom/sample/nsSampleModule.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,76 @@
+/* -*- 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 "mozilla/ModuleUtils.h"
+#include "nsIClassInfoImpl.h"
+
+#include "nsSample.h"
+
+////////////////////////////////////////////////////////////////////////
+// With the below sample, you can define an implementation glue
+// that talks with xpcom for creation of component nsSampleImpl
+// that implement the interface nsISample. This can be extended for
+// any number of components.
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+// Define the contructor function for the object nsSampleImpl
+//
+// What this does is defines a function nsSampleImplConstructor which we
+// will specific in the nsModuleComponentInfo table. This function will
+// be used by the generic factory to create an instance of nsSampleImpl.
+//
+// NOTE: This creates an instance of nsSampleImpl by using the default
+//		 constructor nsSampleImpl::nsSampleImpl()
+//
+NS_GENERIC_FACTORY_CONSTRUCTOR(nsSampleImpl)
+
+// The following line defines a kNS_SAMPLE_CID CID variable.
+NS_DEFINE_NAMED_CID(NS_SAMPLE_CID);
+
+// Build a table of ClassIDs (CIDs) which are implemented by this module. CIDs
+// should be completely unique UUIDs.
+// each entry has the form { CID, service, factoryproc, constructorproc }
+// where factoryproc is usually nullptr.
+static const mozilla::Module::CIDEntry kSampleCIDs[] = {
+    { &kNS_SAMPLE_CID, false, nullptr, nsSampleImplConstructor },
+    { nullptr }
+};
+
+// Build a table which maps contract IDs to CIDs.
+// A contract is a string which identifies a particular set of functionality. In some
+// cases an extension component may override the contract ID of a builtin gecko component
+// to modify or extend functionality.
+static const mozilla::Module::ContractIDEntry kSampleContracts[] = {
+    { NS_SAMPLE_CONTRACTID, &kNS_SAMPLE_CID },
+    { nullptr }
+};
+
+// Category entries are category/key/value triples which can be used
+// to register contract ID as content handlers or to observe certain
+// notifications. Most modules do not need to register any category
+// entries: this is just a sample of how you'd do it.
+// @see nsICategoryManager for information on retrieving category data.
+static const mozilla::Module::CategoryEntry kSampleCategories[] = {
+    { "my-category", "my-key", NS_SAMPLE_CONTRACTID },
+    { nullptr }
+};
+
+static const mozilla::Module kSampleModule = {
+    mozilla::Module::kVersion,
+    kSampleCIDs,
+    kSampleContracts,
+    kSampleCategories
+};
+
+// The following line implements the one-and-only "NSModule" symbol exported from this
+// shared library.
+NSMODULE_DEFN(nsSampleModule) = &kSampleModule;
+
+// The following line implements the one-and-only "NSGetModule" symbol
+// for compatibility with mozilla 1.9.2. You should only use this
+// if you need a binary which is backwards-compatible and if you use
+// interfaces carefully across multiple versions.
+NS_IMPL_MOZILLA192_NSGETMODULE(&kSampleModule)