P2P <-> cast library integration v0.1

chrome/renderer/media/cast_session.h

 // Copyright 2013 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 CHROME_RENDERER_MEDIA_CAST_SESSION_H_
 #define CHROME_RENDERER_MEDIA_CAST_SESSION_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
+#include "net/base/ip_endpoint.h"
 
 namespace base {
 class MessageLoopProxy;
 }  // namespace base
 
+namespace content{
+class P2PSocketClient;
+};
 namespace media {
 namespace cast {
 struct AudioSenderConfig;
 struct VideoSenderConfig;
 }  // namespace cast
 }  // namespace media
 
 class CastSessionDelegate;
 
 // This class represents a Cast session and allows the session to be
 // configured on the main thread. Actual work is forwarded to
 // CastSessionDelegate on the IO thread.
 class CastSession : public base::RefCounted<CastSession> {
  public:
   CastSession();
 
+  class SocketFactory {
+   public:
+    virtual ~SocketFactory();
+
+    // Called on IO thread.
+    virtual scoped_refptr<content::P2PSocketClient> create() = 0;
+  };
+
+  // Send the socket factory to the delegate, where create will be
+  // called. The delegate will then delete the socket factory on the
+  // IO thread. We do it this way because the P2P socket needs to
+  // be created on the same thread that the callbacks will be called on.
+  // The |remote_endpoint| is the address will be used when calling
+  // SendWithDscp on the P2PSocketClient.
+  // Takes ownership of socket_factory.
+  void SetSocketFactory(scoped_ptr<SocketFactory> socket_factory,
+                        const net::IPEndPoint& remote_address);
+
   // Start encoding of audio and video using the provided configuration.
   void StartAudio(const media::cast::AudioSenderConfig& config);
   void StartVideo(const media::cast::VideoSenderConfig& config);
 
  private:
   friend class base::RefCounted<CastSession>;
   virtual ~CastSession();
 
   // This member should never be dereferenced on the main thread.
   // CastSessionDelegate lives only on the IO thread. It is always
   // safe to post task on the IO thread to access CastSessionDelegate
   // because it is owned by this object.
   scoped_ptr<CastSessionDelegate> delegate_;
 
   // Proxy to the IO message loop.
   const scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_;
 
   DISALLOW_COPY_AND_ASSIGN(CastSession);
 };
 
 #endif  // CHROME_RENDERER_MEDIA_CAST_SESSION_H_