diff -r 000000000000 -r 6474c204b198 media/webrtc/signaling/src/common/csf_common.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/media/webrtc/signaling/src/common/csf_common.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,79 @@
+/* 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 _CSF_COMMON_E58E5677_950A_424c_B6C2_CA180092E6A2_H
+#define _CSF_COMMON_E58E5677_950A_424c_B6C2_CA180092E6A2_H
+
+#include <assert.h>
+#include <memory>
+#include <vector>
+#include <stdlib.h>
+
+/*
+
+This header file defines:
+
+csf_countof
+csf_sprintf
+csf_vsprintf
+
+*/
+
+/*
+  General security tip: Ensure that "format" is never a user-defined string. Format should ALWAYS be something that's built into your code, not
+  user supplied. For example: never write:
+
+  csf_sprintf(buffer, csf_countof(buffer), pUserSuppliedString);
+
+  Instead write:
+
+  csf_sprintf(buffer, csf_countof(buffer), "%s", pUserSuppliedString);
+
+*/
+
+#ifdef WIN32
+    #if !defined(_countof)
+        #if !defined(__cplusplus)
+            #define _countof(_Array) (sizeof(_Array) / sizeof(_Array[0]))
+        #else
+            extern "C++"
+            {
+            template <typename _CountofType, size_t _SizeOfArray>
+            char (*_csf_countof_helper(_CountofType (&_Array)[_SizeOfArray]))[_SizeOfArray];
+            #define _countof(_Array) sizeof(*_csf_countof_helper(_Array))
+            }
+        #endif
+    #endif
+#else
+    #define _countof(_Array) (sizeof(_Array) / sizeof(_Array[0]))
+#endif
+//csf_countof
+
+#define csf_countof(anArray) _countof(anArray)
+
+//csf_sprintf
+
+#ifdef _WIN32
+  //Unlike snprintf, sprintf_s guarantees that the buffer will be null-terminated (unless the buffer size is zero).
+  #define csf_sprintf(/* char* */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, ...)\
+    _snprintf_s (buffer, sizeOfBufferInCharsInclNullTerm, _TRUNCATE, format, __VA_ARGS__)
+#else
+  #define csf_sprintf(/* char */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, ...)\
+    snprintf (buffer, sizeOfBufferInCharsInclNullTerm, format, __VA_ARGS__);\
+    buffer[sizeOfBufferInCharsInclNullTerm-1] = '\0'
+#endif
+
+//csf_vsprintf
+
+#ifdef _WIN32
+  #define csf_vsprintf(/* char* */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, /* va_list */ vaList)\
+    vsnprintf_s (buffer, sizeOfBufferInCharsInclNullTerm, _TRUNCATE, format, vaList);\
+    buffer[sizeOfBufferInCharsInclNullTerm-1] = '\0'
+#else
+  #define csf_vsprintf(/* char */ buffer, /* size_t */ sizeOfBufferInCharsInclNullTerm, /* const char * */ format, /* va_list */ vaList)\
+    vsprintf (buffer, format, vaList);\
+    buffer[sizeOfBufferInCharsInclNullTerm-1] = '\0'
+#endif
+
+#endif