Removing "crypto_required" from MediaContentDescription.

webrtc/api/webrtcsession.h

Index: webrtc/api/webrtcsession.h
diff --git a/webrtc/api/webrtcsession.h b/webrtc/api/webrtcsession.h
index 94f146ff57c7e4221cda105aa501514513f66965..e046b10e2b62ba71bb847f295b0601c30cd5fbab 100644
--- a/webrtc/api/webrtcsession.h
+++ b/webrtc/api/webrtcsession.h
@@ -197,7 +197,6 @@ class WebRtcSession :
 
   cricket::BaseChannel* GetChannel(const std::string& content_name);
 
-  void SetSdesPolicy(cricket::SecurePolicy secure_policy);
   cricket::SecurePolicy SdesPolicy() const;
 
   // Get current ssl role from transport.
@@ -438,6 +437,10 @@ class WebRtcSession :
                                  const SessionDescriptionInterface* remote_desc,
                                  bool* valid);
 
+  // Returns true if SRTP (either using DTLS-SRTP or SDES) is required by
+  // this session.
+  bool SrtpRequired() const;
+
   void OnTransportControllerConnectionState(cricket::IceConnectionState state);
   void OnTransportControllerReceiving(bool receiving);
   void OnTransportControllerGatheringState(cricket::IceGatheringState state);