Return Error Status Upon Blocking Requests...

net/url_request/url_request.h

 // Copyright (c) 2006-2009 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 NET_URL_REQUEST_URL_REQUEST_H_
 #define NET_URL_REQUEST_URL_REQUEST_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 194 matching lines @@
 
   // If destroyed after Start() has been called but while IO is pending,
   // then the request will be effectively canceled and the delegate
   // will not have any more of its methods called.
   ~URLRequest();
 
   // The user data allows the clients to associate data with this request.
   // Multiple user data values can be stored under different keys.
   // This request will TAKE OWNERSHIP of the given data pointer, and will
   // delete the object if it is changed or the request is destroyed.
-  UserData* GetUserData(void* key) const;
-  void SetUserData(void* key, UserData* data);
+  UserData* GetUserData(const void* key) const;
+  void SetUserData(const void* key, UserData* data);
 
   // Registers a new protocol handler for the given scheme. If the scheme is
   // already handled, this will overwrite the given factory. To delete the
   // protocol factory, use NULL for the factory BUT this WILL NOT put back
   // any previously registered protocol factory. It will have returned
   // the previously registered factory (or NULL if none is registered) when
   // the scheme was first registered so that the caller can manually put it
   // back if desired.
   //
   // The scheme must be all-lowercase ASCII. See the ProtocolFactory
@@ skipping 336 matching lines @@
 
   // The HTTP response info, lazily initialized.
   net::HttpResponseInfo response_info_;
 
   // Tells us whether the job is outstanding. This is true from the time
   // Start() is called to the time we dispatch RequestComplete and indicates
   // whether the job is active.
   bool is_pending_;
 
   // Externally-defined data accessible by key
-  typedef std::map<void*, linked_ptr<UserData> > UserDataMap;
+  typedef std::map<const void*, linked_ptr<UserData> > UserDataMap;
   UserDataMap user_data_;
 
   // Whether to enable performance profiling on the job serving this request.
   bool enable_profiling_;
 
   // Number of times we're willing to redirect.  Used to guard against
   // infinite redirects.
   int redirect_limit_;
 
   // Cached value for use after we've orphaned the job handling the
@@ skipping 26 matching lines @@
 #define URLREQUEST_COUNT_DTOR() url_request_metrics.object_count--
 
 #else  // disable leak checking in release builds...
 
 #define URLREQUEST_COUNT_CTOR()
 #define URLREQUEST_COUNT_DTOR()
 
 #endif  // #ifndef NDEBUG
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_H_