Detect debugging target crash.

content/browser/devtools/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_DEVTOOLS_DEVTOOLS_HTTP_HANDLER_IMPL_H_
 #define CONTENT_BROWSER_DEVTOOLS_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 DevToolsBrowserTarget;
 class DevToolsClientHost;
 
 class DevToolsHttpHandlerImpl
     : public DevToolsHttpHandler,
-      public NotificationObserver,
       public base::RefCountedThreadSafe<DevToolsHttpHandlerImpl>,
       public net::HttpServer::Delegate {
  private:
   friend class base::RefCountedThreadSafe<DevToolsHttpHandlerImpl>;
   friend class DevToolsHttpHandler;
 
   // 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 SetDevToolsAgentHostBinding(
       DevToolsAgentHostBinding* binding) OVERRIDE;
   virtual GURL GetFrontendURL(DevToolsAgentHost* agent_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 40 matching lines @@
   scoped_ptr<base::Thread> thread_;
 
   std::string overridden_frontend_url_;
   scoped_ptr<const net::StreamListenSocketFactory> socket_factory_;
   scoped_refptr<net::HttpServer> server_;
   typedef std::map<int, DevToolsClientHost*> ConnectionToClientHostMap;
   ConnectionToClientHostMap connection_to_client_host_ui_;
   scoped_ptr<DevToolsHttpHandlerDelegate> delegate_;
   DevToolsAgentHostBinding* binding_;
   scoped_ptr<DevToolsAgentHostBinding> default_binding_;
-  NotificationRegistrar registrar_;
   scoped_ptr<DevToolsBrowserTarget> browser_target_;
   DISALLOW_COPY_AND_ASSIGN(DevToolsHttpHandlerImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_HTTP_HANDLER_IMPL_H_