Add constants for font encodings.
Consolidate strings that refer to values in ISO 32000-1:2008 spec, table
D1.
Bug: pdfium:1049
Change-Id: I6e41511ca9b9c37de3630f3d2b3f2687f2709369
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/92110
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/constants/font_encodings.h b/constants/font_encodings.h
new file mode 100644
index 0000000..d928273
--- /dev/null
+++ b/constants/font_encodings.h
@@ -0,0 +1,19 @@
+// Copyright 2022 PDFium 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 CONSTANTS_FONT_ENCODINGS_H_
+#define CONSTANTS_FONT_ENCODINGS_H_
+
+namespace pdfium {
+namespace font_encodings {
+
+extern const char kMacRomanEncoding[];
+extern const char kWinAnsiEncoding[];
+extern const char kPDFDocEncoding[];
+extern const char kMacExpertEncoding[];
+
+} // namespace font_encodings
+} // namespace pdfium
+
+#endif // CONSTANTS_FONT_ENCODINGS_H_
