Add FileWriteMode::kCreateOrFail

util/file/file_io_win.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 25 matching lines @@
 namespace crashpad {
 
 namespace {
 
 FileHandle LoggingOpenFileForOutput(DWORD access,
                                     const base::FilePath& path,
                                     FileWriteMode mode,
                                     FilePermissions permissions) {
   DWORD disposition = 0;
   switch (mode) {
+    case FileWriteMode::kReuseOrFail:
+      disposition = OPEN_EXISTING;
+      break;
     case FileWriteMode::kReuseOrCreate:
       disposition = OPEN_ALWAYS;
       break;
     case FileWriteMode::kTruncateOrCreate:
       disposition = CREATE_ALWAYS;
       break;
     case FileWriteMode::kCreateOrFail:
       disposition = CREATE_NEW;
       break;
   }
@@ skipping 147 matching lines @@
   return true;
 }
 
 bool LoggingCloseFile(FileHandle file) {
   BOOL rv = CloseHandle(file);
   PLOG_IF(ERROR, !rv) << "CloseHandle";
   return rv;
 }
 
 }  // namespace crashpad