media: Verify CDM Host files

content/public/common/cdm_info.h

 // Copyright 2016 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 CONTENT_PUBLIC_COMMON_CDM_INFO_H_
 #define CONTENT_PUBLIC_COMMON_CDM_INFO_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 21 matching lines @@
   // Path to the library implementing the CDM. May be empty if the
   // CDM is not a separate library (e.g. Widevine on Android).
   base::FilePath path;
 
   // List of codecs supported by the CDM (e.g. vp8).
   // TODO(jrummell): use the enums from media::AudioCodec and media::VideoCodec
   // instead of strings.
   std::vector<std::string> supported_codecs;
 };
 
+struct CONTENT_EXPORT CdmHostFilePath {
+  CdmHostFilePath(const base::FilePath& file_path,
+                  const base::FilePath& sig_file_path);
+  ~CdmHostFilePath();
+
+  // Path to a file that takes part in hosting the CDM.
+  base::FilePath file_path;
+
+  // Path to a signature file of the file at |file_path|.
+  base::FilePath sig_file_path;
+};
+
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_COMMON_CDM_INFO_H_