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

chrome/browser/net/chrome_extensions_network_delegate.h

 // Copyright 2014 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 CHROME_BROWSER_NET_CHROME_EXTENSIONS_NETWORK_DELEGATE_H_
 #define CHROME_BROWSER_NET_CHROME_EXTENSIONS_NETWORK_DELEGATE_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
@@ skipping 45 matching lines @@
       net::URLRequest* request,
       const net::CompletionCallback& callback,
       const net::HttpResponseHeaders* original_response_headers,
       scoped_refptr<net::HttpResponseHeaders>* override_response_headers,
       GURL* allowed_unsafe_redirect_url) override;
   void OnBeforeRedirect(net::URLRequest* request,
                         const GURL& new_location) override;
   void OnResponseStarted(net::URLRequest* request) override;
   void OnCompleted(net::URLRequest* request, bool started) override;
   void OnURLRequestDestroyed(net::URLRequest* request) override;
-  void OnURLRequestJobOrphaned(net::URLRequest* request) override;
   void OnPACScriptError(int line_number, const base::string16& error) override;
   net::NetworkDelegate::AuthRequiredResponse OnAuthRequired(
       net::URLRequest* request,
       const net::AuthChallengeInfo& auth_info,
       const AuthCallback& callback,
       net::AuthCredentials* credentials) override;
 
  protected:
   ChromeExtensionsNetworkDelegate();
 
   void* profile_;
 
 #if defined(ENABLE_EXTENSIONS)
   scoped_refptr<extensions::InfoMap> extension_info_map_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(ChromeExtensionsNetworkDelegate);
 };
 
 #endif  // CHROME_BROWSER_NET_CHROME_EXTENSIONS_NETWORK_DELEGATE_H_