Allows deferral of a URLRequest just before talking to the network, at

net/url_request/url_request_http_job.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 NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_
 #define NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 95 matching lines @@
   virtual bool GetResponseCookies(std::vector<std::string>* cookies) OVERRIDE;
   virtual int GetResponseCode() const OVERRIDE;
   virtual Filter* SetupFilter() const OVERRIDE;
   virtual bool IsSafeRedirect(const GURL& location) OVERRIDE;
   virtual bool NeedsAuth() OVERRIDE;
   virtual void GetAuthChallengeInfo(scoped_refptr<AuthChallengeInfo>*) OVERRIDE;
   virtual void SetAuth(const AuthCredentials& credentials) OVERRIDE;
   virtual void CancelAuth() OVERRIDE;
   virtual void ContinueWithCertificate(X509Certificate* client_cert) OVERRIDE;
   virtual void ContinueDespiteLastError() OVERRIDE;
+  virtual void ResumeNetworkStart() OVERRIDE;
   virtual bool ReadRawData(IOBuffer* buf, int buf_size,
                            int* bytes_read) OVERRIDE;
   virtual void StopCaching() OVERRIDE;
   virtual bool GetFullRequestHeaders(
       HttpRequestHeaders* headers) const OVERRIDE;
   virtual void DoneReading() OVERRIDE;
   virtual HostPortPair GetSocketAddress() const OVERRIDE;
   virtual void NotifyURLRequestDestroyed() OVERRIDE;
 
   void RecordTimer();
@@ skipping 127 matching lines @@
 
   // Flag used to verify that |this| is not deleted while we are awaiting
   // a callback from the NetworkDelegate. Used as a fail-fast mechanism.
   // True if we are waiting a callback and
   // NetworkDelegate::NotifyURLRequestDestroyed has not been called, yet,
   // to inform the NetworkDelegate that it may not call back.
   bool awaiting_callback_;
 
   const HttpUserAgentSettings* http_user_agent_settings_;
 
+  URLRequest* request_;

[mmenke, 2014/01/07 15:26:23]

Not needed.

URLRequestJob::request_ is protected, so can just use that.  Also, you don't
seem to add any new uses of this, anyways.

[jkarlin, 2014/01/07 16:19:32]

Done.

+
   DISALLOW_COPY_AND_ASSIGN(URLRequestHttpJob);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_HTTP_JOB_H_