diff --git a/src/modules/interface/module.h b/src/modules/interface/module.h
index f2709789e..0a74f2a95 100644
--- a/src/modules/interface/module.h
+++ b/src/modules/interface/module.h
@@ -1,33 +1,58 @@
-#ifndef MODULE_H
-#define MODULE_H
+/*
+ *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef MODULES_INTERFACE_MODULE_H_
+#define MODULES_INTERFACE_MODULE_H_
 
 #include "typedefs.h"
 
-namespace webrtc
-{
+namespace webrtc {
 
-class Module
-{
-public:
-    // Returns version of the module and its components.
-    virtual int32_t Version(char* version,
-                            uint32_t& remainingBufferInBytes,
-                            uint32_t& position) const = 0;
+class Module {
+ public:
+  // Returns version of the module and its components.
+  virtual int32_t Version(char* version,
+                          uint32_t& remaining_buffer_in_bytes,
+                          uint32_t& position) const = 0;
 
-    // Change the unique identifier of this object.
-    virtual int32_t ChangeUniqueId(const int32_t id) = 0;
+  // Change the unique identifier of this object.
+  virtual int32_t ChangeUniqueId(const int32_t id) = 0;
 
-    // Returns the number of milliseconds until the module want a worker
-    // thread to call Process.
-    virtual int32_t TimeUntilNextProcess() = 0 ;
+  // Returns the number of milliseconds until the module want a worker
+  // thread to call Process.
+  virtual int32_t TimeUntilNextProcess() = 0;
 
-    // Process any pending tasks such as timeouts.
-    virtual int32_t Process() = 0 ;
+  // Process any pending tasks such as timeouts.
+  virtual int32_t Process() = 0;
 
-protected:
-    virtual ~Module() {}
+ protected:
+  virtual ~Module() {}
 };
 
-} // namespace webrtc
+// Reference counted version of the module interface.
+class RefCountedModule : public Module {
+ public:
+  // Increase the reference count by one.
+  // Returns the incremented reference count.
+  virtual int32_t AddRef() = 0;
 
-#endif // MODULE_H
+  // Decrease the reference count by one.
+  // Returns the decreased reference count.
+  // Returns 0 if the last reference was just released.
+  // When the reference count reach 0 the object will self-destruct.
+  virtual int32_t Release() = 0;
+
+ protected:
+  virtual ~RefCountedModule() {}
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_INTERFACE_MODULE_H_