Ensure we don't load plugins on the IO thread

chrome/browser/renderer_host/resource_dispatcher_host.h

 // Copyright (c) 2006-2008 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.
 
 // This is the browser side of the resource dispatcher, it receives requests
 // from the child process (i.e. [Renderer, Plugin, Worker]ProcessHost), and
 // dispatches them to URLRequests. It then fowards the messages from the
 // URLRequests back to the correct process for handling.
 //
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
@@ skipping 90 matching lines @@
           filter_policy(FilterPolicy::DONT_FILTER),
           last_load_state(net::LOAD_STATE_IDLE),
           upload_size(upload_size),
           last_upload_position(0),
           waiting_for_upload_progress_ack(false),
           memory_cost(0),
           is_paused(false),
           has_started_reading(false),
           paused_read_bytes(0) {
     }
+    virtual ~ExtraRequestInfo() { resource_handler->OnRequestClosed(); }
 
     // Top-level ResourceHandler servicing this request.
     scoped_refptr<ResourceHandler> resource_handler;
 
     // CrossSiteResourceHandler for this request, if it is a cross-site request.
     // (NULL otherwise.)  This handler is part of the chain of ResourceHandlers
     // pointed to by resource_handler.
     CrossSiteResourceHandler* cross_site_handler;
 
     LoginHandler* login_handler;
@@ skipping 224 matching lines @@
   // observe resource events on the UI thread, subscribe to the
   // NOTIFY_RESOURCE_* notifications of the notification service.
   void AddObserver(Observer* obs);
 
   // Removes an observer.
   void RemoveObserver(Observer* obs);
 
   // Retrieves a URLRequest.  Must be called from the IO thread.
   URLRequest* GetURLRequest(GlobalRequestID request_id) const;
 
-  // A test to determining whether a given request should be forwarded to the
-  // download thread.
-  bool ShouldDownload(const std::string& mime_type,
-                      const std::string& content_disposition);
-
   // Notifies our observers that a request has been cancelled.
   void NotifyResponseCompleted(URLRequest* request, int process_id);
 
   void RemovePendingRequest(int process_id, int request_id);
 
   // Causes all new requests for the route identified by
   // |process_id| and |route_id| to be blocked (not being
   // started) until ResumeBlockedRequestsForRoute or
   // CancelBlockedRequestsForRoute is called.
   void BlockRequestsForRoute(int process_id, int route_id);
@@ skipping 174 matching lines @@
   // start at -2 and go down from there. (We need to start at -2 because -1 is
   // used as a special value all over the resource_dispatcher_host for
   // uninitialized variables.) This way, we no longer have the unlikely (but
   // observed in the real world!) event where we have two requests with the same
   // request_id_.
   int request_id_;
 
   // List of objects observing resource dispatching.
   ObserverList<Observer> observer_list_;
 
-  PluginService* plugin_service_;
-
   // For running tasks.
   ScopedRunnableMethodFactory<ResourceDispatcherHost> method_runner_;
 
   // True if the resource dispatcher host has been shut down.
   bool is_shutdown_;
 
   typedef std::vector<URLRequest*> BlockedRequestsList;
   typedef std::pair<int, int> ProcessRouteIDs;
   typedef std::map<ProcessRouteIDs, BlockedRequestsList*> BlockedRequestMap;
   BlockedRequestMap blocked_requests_map_;
@@ skipping 15 matching lines @@
   // Used during IPC message dispatching so that the handlers can get a pointer
   // to the source of the message.
   Receiver* receiver_;
 
   static bool g_is_http_prioritization_enabled;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceDispatcherHost);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RESOURCE_DISPATCHER_HOST_H_