Support encrypted RTP extensions (RFC 6904)

webrtc/pc/mediasession.h

Index: webrtc/pc/mediasession.h
diff --git a/webrtc/pc/mediasession.h b/webrtc/pc/mediasession.h
index a901e1d75a3e75c129f40d1b1c7694eea55ab8ae..fc556f208a68c838341ed18b48181bee7375ef4a 100644
--- a/webrtc/pc/mediasession.h
+++ b/webrtc/pc/mediasession.h
@@ -464,6 +464,10 @@ class MediaSessionDescriptionFactory {
   // applications. |add_legacy_| is true per default.
   void set_add_legacy_streams(bool add_legacy) { add_legacy_ = add_legacy; }
 
+  void set_enable_rtp_header_encryption(bool enable) {
+    enable_rtp_header_encryption_ = enable;
+  }
+
   SessionDescription* CreateOffer(
       const MediaSessionOptions& options,
       const SessionDescription* current_description) const;
@@ -563,6 +567,7 @@ class MediaSessionDescriptionFactory {
   DataCodecs data_codecs_;
   SecurePolicy secure_;
   bool add_legacy_;
+  bool enable_rtp_header_encryption_ = false;

[pthatcher1, 2017/03/21 07:07:06]

"encrypted_rtp_extensions_" to match existing names might be better.

[joachim, 2017/03/23 00:04:33]

The "XXX_rtp_extensions_" members are lists of extensions (e.g.
"audio_rtp_extensions_") where the new member is a flag.

If you want to use a different name, what about
"enable_encrypted_rtp_extensions_"?

   std::string lang_;
   const TransportDescriptionFactory* transport_desc_factory_;
 };