Update from https://crrev.com/306655

net/base/file_stream_context.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/base/file_stream_context.h"
 
 #include "base/files/file_path.h"
 #include "base/location.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/profiler/scoped_tracker.h"
@@ skipping 15 matching lines @@
   callback.Run(static_cast<int>(result));
 }
 
 }  // namespace
 
 FileStream::Context::IOResult::IOResult()
     : result(OK),
       os_error(0) {
 }
 
-FileStream::Context::IOResult::IOResult(int64 result, int os_error)
+FileStream::Context::IOResult::IOResult(int64 result,
+                                        logging::SystemErrorCode os_error)
     : result(result),
       os_error(os_error) {
 }
 
 // static
 FileStream::Context::IOResult FileStream::Context::IOResult::FromOSError(
-    int64 os_error) {
+    logging::SystemErrorCode os_error) {
   return IOResult(MapSystemError(os_error), os_error);
 }
 
 // ---------------------------------------------------------------------
 
 FileStream::Context::OpenResult::OpenResult() {
 }
 
 FileStream::Context::OpenResult::OpenResult(base::File file,
                                             IOResult error_code)
@@ skipping 185 matching lines @@
   // should be reset before Close() because it shouldn't run if any async
   // operation is in progress.
   async_in_progress_ = false;
   if (orphaned_)
     CloseAndDelete();
   else
     callback.Run(result.result);
 }
 
 }  // namespace net