Add a menu item to content_shell to open devtools to make it more discoverable.

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>
@@ skipping 35 matching lines @@
                           const std::string& frontend_url,
                           net::URLRequestContextGetter* request_context_getter,
                           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;
 
   // 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;
 
-  PageList GeneratePageList();
-
-  virtual void OnJsonRequestUI(int connection_id,
-                               const net::HttpServerRequestInfo& info);
-  virtual void OnWebSocketRequestUI(int connection_id,
-                                    const net::HttpServerRequestInfo& info);
-  virtual void OnWebSocketMessageUI(int connection_id,
-                                    const std::string& data);
-  virtual void OnCloseUI(int connection_id);
+  void OnJsonRequestUI(int connection_id,
+                       const net::HttpServerRequestInfo& info);
+  void OnWebSocketRequestUI(int connection_id,
+                            const net::HttpServerRequestInfo& info);
+  void OnWebSocketMessageUI(int connection_id, const std::string& data);
+  void OnCloseUI(int connection_id);
 
   // net::URLRequest::Delegate implementation.
   virtual void OnResponseStarted(net::URLRequest* request) OVERRIDE;
   virtual void OnReadCompleted(net::URLRequest* request,
                                int bytes_read) OVERRIDE;
 
   void Init();
   void TeardownAndRelease();
   void Bind(net::URLRequest* request, int connection_id);
   void RequestCompleted(net::URLRequest* request);
 
   void Send200(int connection_id,
                const std::string& data,
                const std::string& mime_type = "text/html");
   void Send404(int connection_id);
   void Send500(int connection_id,
                const std::string& message);
   void AcceptWebSocket(int connection_id,
                        const net::HttpServerRequestInfo& request);
 
+  PageList GeneratePageList();
+
+  // Returns the front end url without the host at the beginning.
+  std::string GetFrontendURLInternal(const std::string rvh_id,
+                                     const std::string& host);
+
   std::string overridden_frontend_url_;
   scoped_ptr<const net::StreamListenSocketFactory> socket_factory_;
   scoped_refptr<net::HttpServer> server_;
   typedef std::map<net::URLRequest*, int>
       RequestToSocketMap;
   RequestToSocketMap request_to_connection_io_;
   typedef std::map<int, std::set<net::URLRequest*> >
       ConnectionToRequestsMap;
   ConnectionToRequestsMap connection_to_requests_io_;
   typedef std::map<net::URLRequest*, scoped_refptr<net::IOBuffer> >
       BuffersMap;
   BuffersMap request_to_buffer_io_;
   typedef std::map<int, content::DevToolsClientHost*>
       ConnectionToClientHostMap;
   ConnectionToClientHostMap connection_to_client_host_ui_;
   net::URLRequestContextGetter* request_context_getter_;
   scoped_ptr<DevToolsHttpHandlerDelegate> delegate_;
   RenderViewHostBinding* binding_;
   scoped_ptr<RenderViewHostBinding> default_binding_;
   DISALLOW_COPY_AND_ASSIGN(DevToolsHttpHandlerImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DEBUGGER_DEVTOOLS_HTTP_HANDLER_IMPL_H_