Make it possible to have multiple InspectorBackends

sky/services/inspector/inspector_frontend_impl.h

 // Copyright 2014 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 SKY_SERVICES_INSPECTOR_INSPECTOR_FRONTEND_IMPL_H_
 #define SKY_SERVICES_INSPECTOR_INSPECTOR_FRONTEND_IMPL_H_
 
 #include "mojo/public/cpp/application/interface_factory_impl.h"
 #include "mojo/public/cpp/bindings/interface_impl.h"
 #include "net/server/http_server.h"
 #include "net/socket/tcp_server_socket.h"
 #include "sky/services/inspector/inspector.mojom.h"
 
 namespace sky {
 namespace inspector {
 
-class InspectorFrontendImpl : public mojo::InterfaceImpl<InspectorFrontend>,
-                             public net::HttpServer::Delegate {
+class InspectorFrontendImpl : public mojo::InterfaceImpl<InspectorFrontend> {
  public:
-  InspectorFrontendImpl();
+  class Delegate {
+  public:
+    virtual void Register(InspectorFrontendImpl*) = 0;
+    virtual void Unregister(InspectorFrontendImpl*) = 0;
+
+    virtual void Listen(int32_t port) = 0;
+    virtual void SendMessage(const mojo::String&) = 0;
+  };
+
+  InspectorFrontendImpl(Delegate* delegate);
   virtual ~InspectorFrontendImpl();
 
  private:
-  // From net::HttpServer::Delegate
-  virtual void OnConnect(int connection_id) override;
-  virtual void OnHttpRequest(
-      int connection_id, const net::HttpServerRequestInfo& info) override;
-  virtual void OnWebSocketRequest(
-      int connection_id, const net::HttpServerRequestInfo& info) override;
-  virtual void OnWebSocketMessage(
-      int connection_id, const std::string& data) override;
-  virtual void OnClose(int connection_id) override;
+  // From InspectorFrontend
+  void Listen(int32_t port) override;
+  void SendMessage(const mojo::String& message) override;
 
-  // From InspectorFrontend
-  virtual void Listen(int32_t port) override;
-  virtual void SendMessage(const mojo::String&) override;
-
-  void StopListening();
-
-  void Register(int port);
-  void Unregister();
-
-  int port_;
-  int connection_id_;
-  scoped_ptr<net::HttpServer> web_server_;
+  Delegate* delegate_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(InspectorFrontendImpl);
 };
 
-typedef mojo::InterfaceFactoryImpl<
-    InspectorFrontendImpl> InspectorFrontendFactory;
-
 }  // namespace tester
 }  // namespace sky
 
 #endif  // SKY_SERVICES_INSPECTOR_INSPECTOR_FRONTEND_IMPL_H_