Factor out common error-code conversion code for PlatformFileErrorToNetError.

webkit/blob/local_file_stream_reader.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 "webkit/blob/local_file_stream_reader.h"
 
 #include "base/file_util.h"
 #include "base/file_util_proxy.h"
 #include "base/location.h"
 #include "base/logging.h"
@@ skipping 14 matching lines @@
 // Verify if the underlying file has not been modified.
 bool VerifySnapshotTime(const base::Time& expected_modification_time,
                         const base::PlatformFileInfo& file_info) {
   return expected_modification_time.is_null() ||
          expected_modification_time.ToTimeT() ==
              file_info.last_modified.ToTimeT();
 }
 
 }  // namespace
 
-// static
-int LocalFileStreamReader::PlatformFileErrorToNetError(
-    base::PlatformFileError file_error) {
-  switch (file_error) {
-    case base::PLATFORM_FILE_OK:
-      return net::OK;
-    case base::PLATFORM_FILE_ERROR_NOT_FOUND:
-      return net::ERR_FILE_NOT_FOUND;
-    case base::PLATFORM_FILE_ERROR_ACCESS_DENIED:
-      return net::ERR_ACCESS_DENIED;
-    default:
-      return net::ERR_FAILED;
-  }
-}
-
 LocalFileStreamReader::LocalFileStreamReader(
     base::TaskRunner* task_runner,
     const FilePath& file_path,
     int64 initial_offset,
     const base::Time& expected_modification_time)
     : task_runner_(task_runner),
       file_path_(file_path),
       initial_offset_(initial_offset),
       expected_modification_time_(expected_modification_time),
       has_pending_open_(false),
@@ skipping 102 matching lines @@
 
 void LocalFileStreamReader::DidGetFileInfoForGetLength(
     const net::Int64CompletionCallback& callback,
     base::PlatformFileError error,
     const base::PlatformFileInfo& file_info) {
   if (file_info.is_directory) {
     callback.Run(net::ERR_FILE_NOT_FOUND);
     return;
   }
   if (error != base::PLATFORM_FILE_OK) {
-    callback.Run(LocalFileStreamReader::PlatformFileErrorToNetError(error));
+    callback.Run(net::PlatformFileErrorToNetError(error));
     return;
   }
   if (!VerifySnapshotTime(expected_modification_time_, file_info)) {
     callback.Run(net::ERR_UPLOAD_FILE_CHANGED);
     return;
   }
   callback.Run(file_info.size);
 }
 
 }  // namespace webkit_blob