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diff --git a/third_party/libjingle/files/talk/base/common.h b/third_party/libjingle/files/talk/base/common.h
new file mode 100644
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+++ b/third_party/libjingle/files/talk/base/common.h
@@ -0,0 +1,114 @@
+/*
+ * libjingle
+ * Copyright 2004--2005, Google Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  1. Redistributions of source code must retain the above copyright notice, 
+ *     this list of conditions and the following disclaimer.
+ *  2. Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *  3. The name of the author may not be used to endorse or promote products 
+ *     derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TALK_BASE_COMMON_H__
+#define TALK_BASE_COMMON_H__
+
+#if defined(_MSC_VER)
+// warning C4355: 'this' : used in base member initializer list
+#pragma warning(disable:4355)
+#endif
+
+//////////////////////////////////////////////////////////////////////
+// General Utilities
+//////////////////////////////////////////////////////////////////////
+
+#ifndef UNUSED
+#define UNUSED(x) Unused(static_cast<const void *>(&x))
+#define UNUSED2(x,y) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y))
+#define UNUSED3(x,y,z) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)); Unused(static_cast<const void *>(&z))
+#define UNUSED4(x,y,z,a) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)); Unused(static_cast<const void *>(&z)); Unused(static_cast<const void *>(&a))
+#define UNUSED5(x,y,z,a,b) Unused(static_cast<const void *>(&x)); Unused(static_cast<const void *>(&y)); Unused(static_cast<const void *>(&z)); Unused(static_cast<const void *>(&a)); Unused(static_cast<const void *>(&b))
+inline void Unused(const void *) { }
+#endif // UNUSED
+
+#ifndef WIN32
+#define strnicmp(x,y,n) strncasecmp(x,y,n)
+#define stricmp(x,y) strcasecmp(x,y)
+#define stdmax(x,y) std::max(x,y)
+#else
+#define stdmax(x,y) _max(x,y)
+#endif
+
+
+#define ARRAY_SIZE(x) (static_cast<int>((sizeof(x)/sizeof(x[0]))))
+
+/////////////////////////////////////////////////////////////////////////////
+// Assertions
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef ENABLE_DEBUG
+
+namespace talk_base {
+
+// Break causes the debugger to stop executing, or the program to abort
+void Break();
+
+// LogAssert writes information about an assertion to the log
+void LogAssert(const char * function, const char * file, int line, const char * expression);
+
+inline void Assert(bool result, const char * function, const char * file, int line, const char * expression) {
+  if (!result) {
+    LogAssert(function, file, line, expression);
+    Break();
+  }
+}
+
+}; // namespace talk_base
+
+#if defined(_MSC_VER) && _MSC_VER < 1300
+#define __FUNCTION__ ""
+#endif
+
+#ifndef ASSERT
+#define ASSERT(x) talk_base::Assert((x),__FUNCTION__,__FILE__,__LINE__,#x)
+#endif
+
+#ifndef VERIFY
+#define VERIFY(x) talk_base::Assert((x),__FUNCTION__,__FILE__,__LINE__,#x)
+#endif
+
+#else // !ENABLE_DEBUG
+
+#ifndef ASSERT
+#define ASSERT(x) (void)0
+#endif
+
+#ifndef VERIFY
+#define VERIFY(x) (void)(x)
+#endif
+
+#endif // !ENABLE_DEBUG
+
+#define COMPILE_TIME_ASSERT(expr)       char CTA_UNIQUE_NAME[expr]
+#define CTA_UNIQUE_NAME                 MAKE_NAME(__LINE__)
+#define CTA_MAKE_NAME(line)             MAKE_NAME2(line)
+#define CTA_MAKE_NAME2(line)            constraint_ ## line
+
+//////////////////////////////////////////////////////////////////////
+
+#endif // TALK_BASE_COMMON_H__