Check dimensions and content of bitmaps in EmbedderTests.

testing/utils/md5.h

+// Copyright 2016 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 TESTING_UTILS_MD5_H_
+#define TESTING_UTILS_MD5_H_
+
+#include <stddef.h>
+
+#include <string>
+
+namespace pdfium {
+
+// MD5 stands for Message Digest algorithm 5.
+// MD5 is a robust hash function, designed for cyptography, but often used

[Tom Sepez, 2016/11/21 18:18:26]

nit: s/is/was/ :).  Just give the link to wikipedia ...

+// for file checksums.  The code is complex and slow, but has few
+// collisions.
+// See Also:
+//   http://en.wikipedia.org/wiki/MD5
+
+// Returns the MD5 (in hexadecimal) of a string.
+std::string MD5String(const void* data, size_t size);
+
+}  // namespace pdfium
+
+#endif  // TESTING_UTILS_MD5_H_