Support encrypted RTP extensions (RFC 6904)

webrtc/api/peerconnectioninterface.h

Index: webrtc/api/peerconnectioninterface.h
diff --git a/webrtc/api/peerconnectioninterface.h b/webrtc/api/peerconnectioninterface.h
index b346783bb37048699b95e256026b8bf1a92bb08e..6f9fd5014991a2ffc2d35099fb5bf55149ae3fcd 100644
--- a/webrtc/api/peerconnectioninterface.h
+++ b/webrtc/api/peerconnectioninterface.h
@@ -871,6 +871,10 @@ class PeerConnectionFactoryInterface : public rtc::RefCountInterface {
 
     // Sets crypto related options, e.g. enabled cipher suites.
     rtc::CryptoOptions crypto_options;
+
+    // If set to true, encrypted RTP header extensions as defined in RFC 6904
+    // will be negotiated. They will be only used if both peers support them.
+    bool enable_encrypted_rtp_header_extensions = false;
   };
 
   virtual void SetOptions(const Options& options) = 0;