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diff --git a/chromium/third_party/webrtc/base/md5.h b/chromium/third_party/webrtc/base/md5.h
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+++ b/chromium/third_party/webrtc/base/md5.h
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+/*
+ * This is the header file for the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest.  This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ *
+ */
+
+// Changes(fbarchard): Ported to C++ and Google style guide.
+// Made context first parameter in MD5Final for consistency with Sha1.
+// Changes(hellner): added rtc namespace
+
+#ifndef WEBRTC_BASE_MD5_H_
+#define WEBRTC_BASE_MD5_H_
+
+#include "webrtc/base/basictypes.h"
+
+namespace rtc {
+
+// Canonical name for a MD5 context structure, used in many crypto libs.
+typedef struct MD5Context MD5_CTX;
+
+struct MD5Context {
+  uint32 buf[4];
+  uint32 bits[2];
+  uint32 in[16];
+};
+
+void MD5Init(MD5Context* context);
+void MD5Update(MD5Context* context, const uint8* data, size_t len);
+void MD5Final(MD5Context* context, uint8 digest[16]);
+void MD5Transform(uint32 buf[4], const uint32 in[16]);
+
+}  // namespace rtc
+
+#endif  // WEBRTC_BASE_MD5_H_