Update client side navigator.connect API to use ServicePortCollection [2/3]

content/browser/navigator_connect/navigator_connect_context_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 CONTENT_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_CONTEXT_IMPL_H_
 #define CONTENT_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_CONTEXT_IMPL_H_
 
 #include <map>
 #include "base/callback_forward.h"
 #include "base/memory/scoped_vector.h"
 #include "content/public/browser/message_port_delegate.h"
 #include "content/public/browser/navigator_connect_context.h"
 
+// Windows headers will redefine SendMessage.
+#ifdef SendMessage
+#undef SendMessage
+#endif
+
+class GURL;
+
 namespace content {
 
 class MessagePortMessageFilter;
 class NavigatorConnectService;
 class NavigatorConnectServiceFactory;
 struct NavigatorConnectClient;
+class ServicePortServiceImpl;
 struct TransferredMessagePort;
 
-// Tracks all active navigator.connect connections, as well as available service
-// factories. Delegates connection requests to the correct factory and passes
-// messages on to the correct service.
+// Tracks all active navigator.services connections, as well as available
+// service factories. Delegates connection requests to the correct factory and
+// passes messages on to the correct service.
 // One instance of this class exists per StoragePartition.
-// TODO(mek): Somehow clean up connections when the client side goes away.
-class NavigatorConnectContextImpl : public NavigatorConnectContext {
+// TODO(mek): Clean up connections, fire of closed events when connections die.
+// TODO(mek): Update service side API to be ServicePort based and get rid of
+// MessagePort dependency.
+// TODO(mek): Make ServicePorts that live in a service worker be able to survive
+// the worker being restarted.
+class NavigatorConnectContextImpl : public NavigatorConnectContext,
+                                    public MessagePortDelegate {
  public:
   using ConnectCallback =
-      base::Callback<void(const TransferredMessagePort& message_port,
-                          int message_port_route_id,
-                          bool success)>;
+      base::Callback<void(int message_port_id, bool success)>;
 
   explicit NavigatorConnectContextImpl();
 
   // Called when a new connection request comes in from a client. Finds the
   // correct service factory and passes the connection request off to there.
   // Can call the callback before this method call returns.
-  void Connect(NavigatorConnectClient client,
-               MessagePortMessageFilter* message_port_message_filter,
+  void Connect(const GURL& target_url,
+               const GURL& origin,
+               ServicePortServiceImpl* service_port_service,
                const ConnectCallback& callback);
 
+  // Called by a ServicePortServiceImpl instance when it is about to be
+  // destroyed to inform this class that all its connections are no longer
+  // valid.
+  void ServicePortServiceDestroyed(
+      ServicePortServiceImpl* service_port_service);
+
   // NavigatorConnectContext implementation.
   void AddFactory(scoped_ptr<NavigatorConnectServiceFactory> factory) override;
 
+  // MessagePortDelegate implementation.
+  void SendMessage(
+      int route_id,
+      const MessagePortMessage& message,
+      const std::vector<TransferredMessagePort>& sent_message_ports) override;
+  void SendMessagesAreQueued(int route_id) override;
+
  private:
   ~NavigatorConnectContextImpl() override;
 
   void AddFactoryOnIOThread(scoped_ptr<NavigatorConnectServiceFactory> factory);
 
   // Callback called by service factories when a connection succeeded or failed.
   void OnConnectResult(const NavigatorConnectClient& client,
                        int client_message_port_id,
-                       int client_port_route_id,
                        const ConnectCallback& callback,
                        MessagePortDelegate* delegate,
                        bool data_as_values);
 
   // List of factories to try to handle URLs.
   ScopedVector<NavigatorConnectServiceFactory> service_factories_;
+
+  // List of currently active ServicePorts.
+  struct Port;
+  std::map<int, Port> ports_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_CONTEXT_IMPL_H_