Change net::LOAD_MAIN_FRAME to net::LOAD_MAIN_FRAME_DEPRECATED to discourage

chrome/browser/net/chrome_network_delegate.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 "chrome/browser/net/chrome_network_delegate.h"
 
 #include <stddef.h>
 #include <stdlib.h>
 
 #include <vector>
@@ skipping 113 matching lines @@
   NOTREACHED();
 }
 
 // Record network errors that HTTP requests complete with, including OK and
 // ABORTED.
 void RecordNetworkErrorHistograms(const net::URLRequest* request) {
   if (request->url().SchemeIs("http")) {
     UMA_HISTOGRAM_SPARSE_SLOWLY("Net.HttpRequestCompletionErrorCodes",
                                 std::abs(request->status().error()));
 
-    if (request->load_flags() & net::LOAD_MAIN_FRAME) {
+    if (request->load_flags() & net::LOAD_MAIN_FRAME_DEPRECATED) {
       UMA_HISTOGRAM_SPARSE_SLOWLY(
           "Net.HttpRequestCompletionErrorCodes.MainFrame",
           std::abs(request->status().error()));
     }
   }
 }
 
 }  // namespace
 
 ChromeNetworkDelegate::ChromeNetworkDelegate(
@@ skipping 439 matching lines @@
   if (!data_use_aggregator_)
     return;
 
   if (is_data_usage_off_the_record_) {
     data_use_aggregator_->ReportOffTheRecordDataUse(tx_bytes, rx_bytes);
     return;
   }
 
   data_use_aggregator_->ReportDataUse(request, tx_bytes, rx_bytes);
 }