DevTools: [remote debugging] terminate web socket connection upon renderer disconnect.

content/browser/debugger/devtools_http_handler_impl.h

 // Copyright (c) 2012 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_DEBUGGER_DEVTOOLS_HTTP_HANDLER_IMPL_H_
 #define CONTENT_BROWSER_DEBUGGER_DEVTOOLS_HTTP_HANDLER_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/devtools_http_handler.h"
 #include "content/public/browser/devtools_http_handler_delegate.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
 #include "net/server/http_server.h"
 
 namespace base {
 class DictionaryValue;
 class Thread;
 class Value;
 }
 
 namespace net {
 class StreamListenSocketFactory;
 class URLRequestContextGetter;
 }
 
 namespace content {
 
 class DevToolsClientHost;
 class RenderViewHost;
 
 class DevToolsHttpHandlerImpl
     : public DevToolsHttpHandler,
+      public NotificationObserver,
       public base::RefCountedThreadSafe<DevToolsHttpHandlerImpl>,
       public net::HttpServer::Delegate {
  private:
   struct PageInfo;
   typedef std::vector<PageInfo> PageList;
   friend class base::RefCountedThreadSafe<DevToolsHttpHandlerImpl>;
   friend class DevToolsHttpHandler;
 
   static bool SortPageListByTime(const PageInfo& info1, const PageInfo& info2);
 
   // Takes ownership over |socket_factory|.
   DevToolsHttpHandlerImpl(const net::StreamListenSocketFactory* socket_factory,
                           const std::string& frontend_url,
                           DevToolsHttpHandlerDelegate* delegate);
   virtual ~DevToolsHttpHandlerImpl();
   void Start();
 
   // DevToolsHttpHandler implementation.
   virtual void Stop() OVERRIDE;
   virtual void SetRenderViewHostBinding(
       RenderViewHostBinding* binding) OVERRIDE;
   virtual GURL GetFrontendURL(RenderViewHost* render_view_host) OVERRIDE;
 
+  // NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) OVERRIDE;
+
   // net::HttpServer::Delegate implementation.
   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;
 
@@ skipping 43 matching lines @@
 
   std::string overridden_frontend_url_;
   scoped_ptr<const net::StreamListenSocketFactory> socket_factory_;
   scoped_refptr<net::HttpServer> server_;
   typedef std::map<int, content::DevToolsClientHost*>
       ConnectionToClientHostMap;
   ConnectionToClientHostMap connection_to_client_host_ui_;
   scoped_ptr<DevToolsHttpHandlerDelegate> delegate_;
   RenderViewHostBinding* binding_;
   scoped_ptr<RenderViewHostBinding> default_binding_;
+  NotificationRegistrar registrar_;
   DISALLOW_COPY_AND_ASSIGN(DevToolsHttpHandlerImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEBUGGER_DEVTOOLS_HTTP_HANDLER_IMPL_H_