media: Verify CDM Host files

content/public/common/cdm_info.h

Index: content/public/common/cdm_info.h
diff --git a/content/public/common/cdm_info.h b/content/public/common/cdm_info.h
index ee6780b2c59ae05d8e35bc9931e245a78c1abfc5..ca66734cde4ce76c889cb322ce6f7af82b0f2ed4 100644
--- a/content/public/common/cdm_info.h
+++ b/content/public/common/cdm_info.h
@@ -39,6 +39,18 @@ struct CONTENT_EXPORT CdmInfo {
   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_