Remove all OnBeforeNetworkAccessed code above NetworkTransaction.

net/url_request/url_request.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_H_
 #define NET_URL_REQUEST_URL_REQUEST_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 566 matching lines @@
   // Note that this method has no effect on other (simultaneous or not) requests
   // for the same resource. The typical example is a request that results in
   // the data being stored to disk (downloaded instead of rendered) so we don't
   // want to store it twice.
   void StopCaching();
 
   // This method may be called to follow a redirect that was deferred in
   // response to an OnReceivedRedirect call.
   void FollowDeferredRedirect();
 
-  // This method must be called to resume network communications that were
-  // deferred in response to an OnBeforeNetworkStart call.
-  void ResumeNetworkStart();
-
   // One of the following two methods should be called in response to an
   // OnAuthRequired() callback (and only then).
   // SetAuth will reissue the request with the given credentials.
   // CancelAuth will give up and display the error page.
   void SetAuth(const AuthCredentials& credentials);
   void CancelAuth();
 
   // This method can be called after the user selects a client certificate to
   // instruct this URLRequest to continue with the request with the
   // certificate.  Pass NULL if the user doesn't have a client certificate.
@@ skipping 256 matching lines @@
 
   // The raw header size of the response.
   int raw_header_size_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequest);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_H_