Move ownership of Transport out of Session.

remoting/protocol/transport_context.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef REMOTING_PROTOCOL_TRANSPORT_CONTEXT_H_
 #define REMOTING_PROTOCOL_TRANSPORT_CONTEXT_H_
 
 #include <list>
 #include <string>
 #include <vector>
@@ skipping 19 matching lines @@
 
 // TransportContext is responsible for storing all parameters required for
 // P2P transport initialization. It's also responsible for making JingleInfo
 // request and creation of PortAllocators configured according to the JingleInfo
 // result.
 class TransportContext : public base::RefCountedThreadSafe<TransportContext> {
  public:
   typedef base::Callback<void(scoped_ptr<cricket::PortAllocator>
                                   port_allocator)> CreatePortAllocatorCallback;
 
+  static scoped_refptr<TransportContext> ForTests(TransportRole role);
+
   TransportContext(
       SignalStrategy* signal_strategy,
       scoped_ptr<PortAllocatorFactory> port_allocator_factory,
       const NetworkSettings& network_settings,
       TransportRole role);
 
   // Prepares to create new PortAllocator instances. It may be called while
   // connection is being negotiated to minimize the chance that the following
   // CreatePortAllocator() will be blocking.
   void Prepare();
@@ skipping 33 matching lines @@
   // be called once the |jingle_info_request_| is finished.
   std::list<CreatePortAllocatorCallback> pending_port_allocator_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(TransportContext);
 };
 
 }  // namespace protocol
 }  // namespace remoting
 
 #endif  // REMOTING_PROTOCOL_TRANSPORT_CONTEXT_H_