Revert of CHECK that URLRequestJobs are not orphaned while blocked by extensions.

extensions/browser/api/web_request/web_request_api.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 EXTENSIONS_BROWSER_API_WEB_REQUEST_WEB_REQUEST_API_H_
 #define EXTENSIONS_BROWSER_API_WEB_REQUEST_WEB_REQUEST_API_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 243 matching lines @@
   // Dispatches an onErrorOccurred event.
   void OnErrorOccurred(void* browser_context,
                        const extensions::InfoMap* extension_info_map,
                        net::URLRequest* request,
                        bool started);
 
   // Notifications when objects are going away.
   void OnURLRequestDestroyed(void* browser_context,
                              const net::URLRequest* request);
 
-  // See https://crbug.com/289715.
-  void OnURLRequestJobOrphaned(void* browser_context,
-                               const net::URLRequest* request);
-
   // Called when an event listener handles a blocking event and responds.
   void OnEventHandled(void* browser_context,
                       const std::string& extension_id,
                       const std::string& event_name,
                       const std::string& sub_event_name,
                       uint64_t request_id,
                       EventResponse* response);
 
   // Adds a listener to the given event. |event_name| specifies the event being
   // listened to. |sub_event_name| is an internal event uniquely generated in
@@ skipping 278 matching lines @@
       extensions::QuotaLimitHeuristics* heuristics) const override;
   // Handle quota exceeded gracefully: Only warn the user but still execute the
   // function.
   void OnQuotaExceeded(const std::string& error) override;
   bool RunSync() override;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_WEB_REQUEST_WEB_REQUEST_API_H_