Fix PP_FileOpenFlags_Dev handling:

webkit/plugins/ppapi/file_type_conversions.h

Index: webkit/plugins/ppapi/file_type_conversions.h
diff --git a/webkit/plugins/ppapi/file_type_conversions.h b/webkit/plugins/ppapi/file_type_conversions.h
new file mode 100644
index 0000000000000000000000000000000000000000..708a94bce0a0fe23c0970dbaec460e492aa8307a
--- /dev/null
+++ b/webkit/plugins/ppapi/file_type_conversions.h
@@ -0,0 +1,25 @@
+// Copyright (c) 2011 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.
+
+#ifndef WEBKIT_PLUGINS_PPAPI_FILE_TYPE_CONVERSIONS_H_
+#define WEBKIT_PLUGINS_PPAPI_FILE_TYPE_CONVERSIONS_H_
+
+#include "base/platform_file.h"
+#include "ppapi/c/pp_stdint.h"
+
+namespace webkit {
+namespace ppapi {
+
+int PlatformFileErrorToPepperError(base::PlatformFileError error_code);
+
+// Converts a PP_FileOpenFlags_Dev flag combination into a corresponding
+// PlatformFileFlags flag combination.
+// Returns |true| if okay.
+bool PepperFileOpenFlagsToPlatformFileFlags(int32_t pp_open_flags,
+                                            int* flags_out);
+
+}  // namespace ppapi
+}  // namespace webkit
+
+#endif  // WEBKIT_PLUGINS_PPAPI_FILE_TYPE_CONVERSIONS_H_