diff --git a/pc/session_description.h b/pc/session_description.h
index 9aa8e3556a..a7259e1f1d 100644
--- a/pc/session_description.h
+++ b/pc/session_description.h
@@ -183,14 +183,6 @@ class MediaContentDescription {
     AddStream(sp);
   }
 
-  // Sets the CNAME of all StreamParams if it have not been set.
-  virtual void SetCnameIfEmpty(const std::string& cname) {
-    for (cricket::StreamParamsVec::iterator it = send_streams_.begin();
-         it != send_streams_.end(); ++it) {
-      if (it->cname.empty())
-        it->cname = cname;
-    }
-  }
   virtual uint32_t first_ssrc() const {
     if (send_streams_.empty()) {
       return 0;