Refactor BaseFile methods to return a DownloadInterruptReason instead of a net::Error.

content/browser/download/save_file.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 "content/browser/download/save_file.h"
 
 #include "base/logging.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/file_stream.h"
 
@@ skipping 16 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 
   DCHECK(info);
   DCHECK(info->path.empty());
 }
 
 SaveFile::~SaveFile() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
 }
 
-net::Error SaveFile::Initialize() {
+content::DownloadInterruptReason SaveFile::Initialize() {
   return file_.Initialize(FilePath());
 }
 
-net::Error SaveFile::AppendDataToFile(const char* data, size_t data_len) {
+content::DownloadInterruptReason SaveFile::AppendDataToFile(const char* data,
+                                                            size_t data_len) {
   return file_.AppendDataToFile(data, data_len);
 }
 
-net::Error SaveFile::Rename(const FilePath& full_path) {
+content::DownloadInterruptReason SaveFile::Rename(const FilePath& full_path) {
   return file_.Rename(full_path);
 }
 
 void SaveFile::Detach() {
   file_.Detach();
 }
 
 void SaveFile::Cancel() {
   file_.Cancel();
 }
@@ skipping 18 matching lines @@
   return file_.bytes_so_far();
 }
 
 bool SaveFile::GetHash(std::string* hash) {
   return file_.GetHash(hash);
 }
 
 std::string SaveFile::DebugString() const {
   return file_.DebugString();
 }