Replace scoped_ptr with unique_ptr in webrtc/api/

webrtc/api/webrtcsessiondescriptionfactory.h

Index: webrtc/api/webrtcsessiondescriptionfactory.h
diff --git a/webrtc/api/webrtcsessiondescriptionfactory.h b/webrtc/api/webrtcsessiondescriptionfactory.h
index 8d04bf1d1785c6547ecbe37ea8bddbc508497535..17e2ddd3b06d650df2ef1fb6174ae5d59a30bab5 100644
--- a/webrtc/api/webrtcsessiondescriptionfactory.h
+++ b/webrtc/api/webrtcsessiondescriptionfactory.h
@@ -85,7 +85,7 @@ class WebRtcSessionDescriptionFactory : public rtc::MessageHandler,
   WebRtcSessionDescriptionFactory(
       rtc::Thread* signaling_thread,
       cricket::ChannelManager* channel_manager,
-      rtc::scoped_ptr<DtlsIdentityStoreInterface> dtls_identity_store,
+      std::unique_ptr<DtlsIdentityStoreInterface> dtls_identity_store,
       WebRtcSession* session,
       const std::string& session_id);
 
@@ -133,7 +133,7 @@ class WebRtcSessionDescriptionFactory : public rtc::MessageHandler,
   WebRtcSessionDescriptionFactory(
       rtc::Thread* signaling_thread,
       cricket::ChannelManager* channel_manager,
-      rtc::scoped_ptr<DtlsIdentityStoreInterface> dtls_identity_store,
+      std::unique_ptr<DtlsIdentityStoreInterface> dtls_identity_store,
       const rtc::scoped_refptr<WebRtcIdentityRequestObserver>&
           identity_request_observer,
       WebRtcSession* session,
@@ -164,7 +164,7 @@ class WebRtcSessionDescriptionFactory : public rtc::MessageHandler,
   cricket::TransportDescriptionFactory transport_desc_factory_;
   cricket::MediaSessionDescriptionFactory session_desc_factory_;
   uint64_t session_version_;
-  const rtc::scoped_ptr<DtlsIdentityStoreInterface> dtls_identity_store_;
+  const std::unique_ptr<DtlsIdentityStoreInterface> dtls_identity_store_;
   const rtc::scoped_refptr<WebRtcIdentityRequestObserver>
       identity_request_observer_;
   // TODO(jiayl): remove the dependency on session once bug 2264 is fixed.