Remove stack trace from URLFetcher / URLRequest for debugging

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 619 matching lines @@
 
   // Sets the priority level for this request and any related
   // jobs. Must not change the priority to anything other than
   // MAXIMUM_PRIORITY if the IGNORE_LIMITS load flag is set.
   void SetPriority(RequestPriority priority);
 
   // Returns true iff this request would be internally redirected to HTTPS
   // due to HSTS. If so, |redirect_url| is rewritten to the new HTTPS URL.
   bool GetHSTSRedirect(GURL* redirect_url) const;
 
-  // NOTE(willchan): This is just temporary for debugging

[eroman, 2016/04/25 17:12:36]

"temporary" :)

-  // http://crbug.com/90971.
-  // Allows to setting debug info into the URLRequest.
-  void set_stack_trace(const base::debug::StackTrace& stack_trace);
-  const base::debug::StackTrace* stack_trace() const;
-
   void set_received_response_content_length(int64_t received_content_length) {
     received_response_content_length_ = received_content_length;
   }
 
   // The number of bytes in the raw response body (before any decompression,
   // etc.). This is only available after the final Read completes. Not available
   // for FTP responses.
   int64_t received_response_content_length() const {
     return received_response_content_length_;
   }
@@ skipping 209 matching lines @@
   // Timing information for the most recent request.  Its start times are
   // populated during Start(), and the rest are populated in OnResponseReceived.
   LoadTimingInfo load_timing_info_;
 
   // Keeps track of whether or not OnBeforeNetworkStart has been called yet.
   bool notified_before_network_start_;
 
   // The proxy server used for this request, if any.
   HostPortPair proxy_server_;
 
-  std::unique_ptr<const base::debug::StackTrace> stack_trace_;
-
   DISALLOW_COPY_AND_ASSIGN(URLRequest);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_H_