Added DtlsCertificate, a ref counted object owning an SSLIdentity

talk/app/webrtc/webrtcsessiondescriptionfactory.h

Index: talk/app/webrtc/webrtcsessiondescriptionfactory.h
diff --git a/talk/app/webrtc/webrtcsessiondescriptionfactory.h b/talk/app/webrtc/webrtcsessiondescriptionfactory.h
index 860532dec93e56253f09b95bab031ab2df477e44..4a98f2025349fa84fcb834e630e977f22b87e9f2 100644
--- a/talk/app/webrtc/webrtcsessiondescriptionfactory.h
+++ b/talk/app/webrtc/webrtcsessiondescriptionfactory.h
@@ -28,6 +28,8 @@
 #ifndef TALK_APP_WEBRTC_WEBRTCSESSIONDESCRIPTIONFACTORY_H_
 #define TALK_APP_WEBRTC_WEBRTCSESSIONDESCRIPTIONFACTORY_H_
 
+#include "talk/app/webrtc/dtlscertificate.h"
+#include "talk/app/webrtc/dtlsidentitystore.h"
 #include "talk/app/webrtc/peerconnectioninterface.h"
 #include "webrtc/p2p/base/transportdescriptionfactory.h"
 #include "talk/session/media/mediasession.h"
@@ -57,7 +59,7 @@ class WebRtcIdentityRequestObserver : public DTLSIdentityRequestObserver,
       rtc::scoped_ptr<rtc::SSLIdentity> identity) override;
 
   sigslot::signal1<int> SignalRequestFailed;
-  sigslot::signal1<rtc::SSLIdentity*> SignalIdentityReady;
+  sigslot::signal1<rtc::scoped_refptr<DtlsCertificate>> SignalCertificateReady;
 };
 
 struct CreateSessionDescriptionRequest {
@@ -89,9 +91,10 @@ class WebRtcSessionDescriptionFactory : public rtc::MessageHandler,
  public:
   WebRtcSessionDescriptionFactory(
       rtc::Thread* signaling_thread,
+      rtc::Thread* worker_thread,
       cricket::ChannelManager* channel_manager,
       MediaStreamSignaling* mediastream_signaling,
-      DTLSIdentityServiceInterface* dtls_identity_service,
+      rtc::scoped_refptr<DtlsCertificate> certificate,
       // TODO(jiayl): remove the dependency on session once b/10226852 is fixed.
       WebRtcSession* session,
       const std::string& session_id,
@@ -113,19 +116,19 @@ class WebRtcSessionDescriptionFactory : public rtc::MessageHandler,
   void SetSdesPolicy(cricket::SecurePolicy secure_policy);
   cricket::SecurePolicy SdesPolicy() const;
 
-  sigslot::signal1<rtc::SSLIdentity*> SignalIdentityReady;
+  sigslot::signal1<rtc::scoped_refptr<DtlsCertificate>> SignalCertificateReady;
 
   // For testing.
-  bool waiting_for_identity() const {
-    return identity_request_state_ == IDENTITY_WAITING;
+  bool waiting_for_certificate() const {
+    return certificate_request_state_ == CERTIFICATE_WAITING;
   }
 
  private:
-  enum IdentityRequestState {
-    IDENTITY_NOT_NEEDED,
-    IDENTITY_WAITING,
-    IDENTITY_SUCCEEDED,
-    IDENTITY_FAILED,
+  enum CertificateRequestState {
+    CERTIFICATE_NOT_NEEDED,
+    CERTIFICATE_WAITING,
+    CERTIFICATE_SUCCEEDED,
+    CERTIFICATE_FAILED,
   };
 
   // MessageHandler implementation.
@@ -143,21 +146,24 @@ class WebRtcSessionDescriptionFactory : public rtc::MessageHandler,
       SessionDescriptionInterface* description);
 
   void OnIdentityRequestFailed(int error);
-  void SetIdentity(rtc::SSLIdentity* identity);
+  void SetCertificate(rtc::scoped_refptr<DtlsCertificate> certificate);
 
   std::queue<CreateSessionDescriptionRequest>
       create_session_description_requests_;
   rtc::Thread* const signaling_thread_;
+  rtc::Thread* const worker_thread_;
   MediaStreamSignaling* const mediastream_signaling_;
   cricket::TransportDescriptionFactory transport_desc_factory_;
   cricket::MediaSessionDescriptionFactory session_desc_factory_;
   uint64 session_version_;
+  rtc::scoped_refptr<DtlsCertificate> certificate_;
+  rtc::scoped_ptr<DtlsIdentityStore> identity_store_;
   rtc::scoped_ptr<DTLSIdentityServiceInterface> identity_service_;
   rtc::scoped_refptr<WebRtcIdentityRequestObserver> identity_request_observer_;
   WebRtcSession* const session_;
   const std::string session_id_;
   const cricket::DataChannelType data_channel_type_;
-  IdentityRequestState identity_request_state_;
+  CertificateRequestState certificate_request_state_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRtcSessionDescriptionFactory);
 };