media: Verify CDM Host files

chrome/common/media/cdm_host_file_path.h

+// Copyright 2017 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 CHROME_COMMON_MEDIA_CDM_HOST_FILE_PATH_H_
+#define CHROME_COMMON_MEDIA_CDM_HOST_FILE_PATH_H_
+
+#include <vector>
+
+#include "content/public/common/cdm_info.h"
+
+namespace chrome {
+
+// Gets a list of CDM host file paths and put them in |cdm_host_file_paths|.
+void AddCdmHostFilePaths(
+    std::vector<content::CdmHostFilePath>* cdm_host_file_paths);
+
+}  // namespace chrome
+
+#endif  // CHROME_COMMON_MEDIA_CDM_HOST_FILE_PATH_H_