Add constants for PDF 1.7 spec, table 3.27.

BUG=pdfium:1049

Change-Id: Ie8bdb893d2af8d63420027a7ef95baf58cd97aa6
Reviewed-on: https://pdfium-review.googlesource.com/34691
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/constants/page_object.h b/constants/page_object.h
new file mode 100644
index 0000000000..b7f927b56f
--- /dev/null
+++ b/constants/page_object.h
@@ -0,0 +1,26 @@
+// Copyright 2018 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_PAGE_OBJECT_H_
+#define CONSTANTS_PAGE_OBJECT_H_
+
+namespace pdfium {
+namespace page_object {
+
+// PDF 1.7 spec, table 3.27.
+// Entries in a page object.
+
+constexpr char kType[] = "Type";
+constexpr char kParent[] = "Parent";
+constexpr char kResources[] = "Resources";
+constexpr char kMediaBox[] = "MediaBox";
+constexpr char kCropBox[] = "CropBox";
+constexpr char kArtBox[] = "ArtBox";
+constexpr char kContents[] = "Contents";
+constexpr char kRotate[] = "Rotate";
+
+}  // namespace page_object
+}  // namespace pdfium
+
+#endif  // CONSTANTS_PAGE_OBJECT_H_