Pass navigator.connect calls through to the browser process.

content/browser/navigator_connect/navigator_connect_dispatcher_host.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_DISPATCHER_HOST_H_
+#define CONTENT_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_DISPATCHER_HOST_H_
+
+#include "content/public/browser/browser_message_filter.h"
+
+class GURL;
+
+namespace content {
+
+// Receives navigator.connect connection attempts from a child process.
+// Attempts to find a service that serves the URL the connection is made to
+// and sets up the actual connection.
+// Constructed on the UI thread, but all other methods are called on the IO
+// thread. Typically there is one instance of this class for each renderer
+// process, and this class lives at least as long as the renderer process is
+// alive (since this class is refcounted it could outlive the renderer process
+// if it is still handling a connection attempt).
+class NavigatorConnectDispatcherHost : public BrowserMessageFilter {
+ public:
+  NavigatorConnectDispatcherHost();
+
+ private:
+  ~NavigatorConnectDispatcherHost() override;
+
+  // BrowserMessageFilter implementation.
+  bool OnMessageReceived(const IPC::Message& message) override;
+
+  void OnConnect(int thread_id,
+                 int request_id,
+                 const GURL& target_url,
+                 int message_port_id);
+
+  DISALLOW_COPY_AND_ASSIGN(NavigatorConnectDispatcherHost);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_NAVIGATOR_CONNECT_NAVIGATOR_CONNECT_DISPATCHER_HOST_H_