Decouple DevTools from socket implementation.

net/server/http_server.h

Index: net/server/http_server.h
diff --git a/net/server/http_server.h b/net/server/http_server.h
index aaf5336c66de891539737309f58496994d79373b..56435388f771c520da8d70996cc483eb26814780 100644
--- a/net/server/http_server.h
+++ b/net/server/http_server.h
@@ -39,7 +39,12 @@ class HttpServer : public StreamListenSocket::Delegate,
     virtual ~Delegate() {}
   };
 
-  HttpServer(const std::string& host, int port, HttpServer::Delegate* del);
+  // Note that the constructed HttpServer instance does not take ownership of
+  // the provided socket factory. The factory instance is only used here for
+  // construction which means that it does not need to live longer that the
+  // constructor duration.
+  HttpServer(HttpServer::Delegate* delegate,
+             StreamListenSocketFactory* socket_factory);
 
   void AcceptWebSocket(int connection_id,
                        const HttpServerRequestInfo& request);