Delay generation of User-Agent header to URLRequestHttpJob and accept custom User-Agent from XHR/Fe…

content/child/web_url_loader_impl.cc

 // 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.
 
 #include "content/child/web_url_loader_impl.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 478 matching lines @@
   //             Check credentials flag is set when credentials mode is include.
 
   RequestInfo request_info;
   request_info.method = method;
   request_info.url = url;
   request_info.first_party_for_cookies = request.firstPartyForCookies();
   request_info.request_initiator = request.requestorOrigin();
   referrer_policy_ = request.referrerPolicy();
   request_info.referrer = Referrer(referrer_url, referrer_policy_);
   request_info.headers = GetWebURLRequestHeaders(request);
+  request_info.default_user_agent = request.defaultHTTPUserAgent().latin1();
   request_info.load_flags = GetLoadFlagsForWebURLRequest(request);
   request_info.enable_load_timing = true;
   request_info.enable_upload_progress = request.reportUploadProgress();
   if (request.getRequestContext() ==
           WebURLRequest::RequestContextXMLHttpRequest &&
       (url.has_username() || url.has_password())) {
     request_info.do_not_prompt_for_login = true;
   }
   // requestor_pid only needs to be non-zero if the request originates outside
   // the render process, so we can use requestorProcessID even for requests
@@ skipping 704 matching lines @@
     response->clearHTTPHeaderField(webStringName);
     while (response_headers->EnumerateHeader(&iterator, name, &value)) {
       response->addHTTPHeaderField(webStringName,
                                    WebString::fromLatin1(value));
     }
   }
   return true;
 }
 
 }  // namespace content