Cleanup usage of scoped_ptr<> in remoting for C++11

remoting/host/session_manager_factory.cc

Index: remoting/host/session_manager_factory.cc
diff --git a/remoting/host/session_manager_factory.cc b/remoting/host/session_manager_factory.cc
index 080b7cef403b0b22a64fd894aa48aad4abed096d..ad6ac6bb37c0bda2578d8dfdc7c828616aa9bc7b 100644
--- a/remoting/host/session_manager_factory.cc
+++ b/remoting/host/session_manager_factory.cc
@@ -25,13 +25,11 @@ scoped_ptr<protocol::SessionManager> CreateHostSessionManager(
 
   scoped_ptr<protocol::TransportFactory> transport_factory(
       new protocol::LibjingleTransportFactory(
-          signal_strategy,
-          port_allocator.PassAs<cricket::HttpPortAllocatorBase>(),
-          network_settings));
+          signal_strategy, port_allocator.Pass(), network_settings));
 
   scoped_ptr<protocol::JingleSessionManager> session_manager(
       new protocol::JingleSessionManager(transport_factory.Pass()));
-  return session_manager.PassAs<protocol::SessionManager>();
+  return session_manager.Pass();
 }
 
 } // namespace remoting