Add Content-Type header to net::ReportSender reports

net/url_request/report_sender.cc

 // Copyright 2015 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/report_sender.h"
 
 #include <utility>
 
 #include "base/stl_util.h"
 #include "net/base/elements_upload_data_stream.h"
@@ skipping 27 matching lines @@
 
   int load_flags =
       LOAD_BYPASS_CACHE | LOAD_DISABLE_CACHE | LOAD_DO_NOT_SEND_AUTH_DATA;
   if (cookies_preference_ != SEND_COOKIES) {
     load_flags |= LOAD_DO_NOT_SEND_COOKIES | LOAD_DO_NOT_SAVE_COOKIES;
   }
   url_request->SetLoadFlags(load_flags);
 
   url_request->set_method("POST");
 
+  if (!content_type_.empty()) {
+    url_request->SetExtraRequestHeaderByName(HttpRequestHeaders::kContentType,
+                                             content_type_, true);
+  }
+
   std::unique_ptr<UploadElementReader> reader(
       UploadOwnedBytesElementReader::CreateWithString(report));
   url_request->set_upload(
       ElementsUploadDataStream::CreateWithReader(std::move(reader), 0));
 
   URLRequest* raw_url_request = url_request.get();
   inflight_requests_.insert(url_request.release());
   raw_url_request->Start();
 }
 
+void ReportSender::SetContentTypeHeader(const std::string& content_type) {
+  content_type_ = content_type;
+}
+
 void ReportSender::SetErrorCallback(const ErrorCallback& error_callback) {
   error_callback_ = error_callback;
 }
 
 void ReportSender::OnResponseStarted(URLRequest* request, int net_error) {
   DCHECK_NE(ERR_IO_PENDING, net_error);
 
   if (net_error != OK) {
     DVLOG(1) << "Failed to send report for " << request->url().host();
     if (!error_callback_.is_null())
       error_callback_.Run(request->url(), net_error);
   }
 
   CHECK_GT(inflight_requests_.erase(request), 0u);
   // Clean up the request, which cancels it.
   delete request;
 }
 
 void ReportSender::OnReadCompleted(URLRequest* request, int bytes_read) {
   NOTREACHED();
 }
 
 }  // namespace net