Backward compatibility for licenses and certificates

Certificates and offline licenses are stored in security level
specific directories in klp. When devices transition from jb-mr2,
their persistent information has to be ported to these directories.

bug:10366036

Merge of https://widevine-internal-review.googlesource.com/#/c/7310/
from the widevine CDM repo

Change-Id: I70b4a79dc5b69bda7fc3a4b92fdcde7ef8b41836

libwvdrmengine/cdm/include/properties_configuration.h

@@ -35,6 +35,10 @@ const bool kExtractPsshData = true;
 // function will try to find out the session_id from the key_id.
 const bool kDecryptWithEmptySessionSupport = false;
 
+// If true, device files will be moved to the directory specified by
+// Properties::GetDeviceFilesBasePath
+const bool kSecurityLevelPathBackwardCompatibilitySupport = true;
+
 } // namespace wvcdm
 
 #endif  // CDM_BASE_WV_PROPERTIES_CONFIGURATION_H_