Remove stack trace from URLFetcher / URLRequest for debugging

net/url_request/url_fetcher_core.cc

 // 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.
 
 #include "net/url_request/url_fetcher_core.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 538 matching lines @@
   }
 
   DCHECK(request_context_getter_.get());
   DCHECK(!request_.get());
 
   g_registry.Get().AddURLFetcherCore(this);
   current_response_bytes_ = 0;
   request_context_getter_->AddObserver(this);
   request_ = request_context_getter_->GetURLRequestContext()->CreateRequest(
       original_url_, DEFAULT_PRIORITY, this);
-  request_->set_stack_trace(stack_trace_);
   int flags = request_->load_flags() | load_flags_;
 
   // TODO(mmenke): This should really be with the other code to set the upload
   // body, below.
   if (chunked_stream_)
     request_->set_upload(std::move(chunked_stream_));
 
   request_->SetLoadFlags(flags);
   request_->SetReferrer(referrer_);
   request_->set_referrer_policy(referrer_policy_);
@@ skipping 386 matching lines @@
 }
 
 void URLFetcherCore::AssertHasNoUploadData() const {
   DCHECK(!upload_content_set_);
   DCHECK(upload_content_.empty());
   DCHECK(upload_file_path_.empty());
   DCHECK(upload_stream_factory_.is_null());
 }
 
 }  // namespace net