[Downloads] Retry renames after transient failures.

content/browser/download/download_interrupt_reasons_impl.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/download_interrupt_reasons_impl.h"
 
 #include "base/logging.h"
 
 namespace content {
 
+DownloadInterruptReason ConvertFileErrorToInterruptReason(
+    base::File::Error file_error) {
+  switch (file_error) {
+    case base::File::FILE_OK:
+      return DOWNLOAD_INTERRUPT_REASON_NONE;
+
+    case base::File::FILE_ERROR_IN_USE:
+      return DOWNLOAD_INTERRUPT_REASON_FILE_TRANSIENT_ERROR;
+
+    case base::File::FILE_ERROR_ACCESS_DENIED:
+      return DOWNLOAD_INTERRUPT_REASON_FILE_ACCESS_DENIED;
+
+    case base::File::FILE_ERROR_TOO_MANY_OPENED:
+      return DOWNLOAD_INTERRUPT_REASON_FILE_TRANSIENT_ERROR;
+
+    case base::File::FILE_ERROR_NO_MEMORY:
+      return DOWNLOAD_INTERRUPT_REASON_FILE_TRANSIENT_ERROR;
+
+    case base::File::FILE_ERROR_NO_SPACE:
+      return DOWNLOAD_INTERRUPT_REASON_FILE_NO_SPACE;
+
+    case base::File::FILE_ERROR_SECURITY:
+      return DOWNLOAD_INTERRUPT_REASON_FILE_ACCESS_DENIED;
+
+    default:
+      return DOWNLOAD_INTERRUPT_REASON_FILE_FAILED;
+  }
+}
+
 DownloadInterruptReason ConvertNetErrorToInterruptReason(
     net::Error net_error, DownloadInterruptSource source) {
   switch (net_error) {
     case net::OK:
       return DOWNLOAD_INTERRUPT_REASON_NONE;
 
     // File errors.
 
     // The file is too large.
     case net::ERR_FILE_TOO_BIG:
@@ skipping 80 matching lines @@
     default:
       break;
   }
 
 #undef INTERRUPT_REASON
 
   return "Unknown error";
 }
 
 }  // namespace content