Address review comments

Merge from Widevine repo of http://go/wvgerrit/54540

Addressing comments in http://go/ag/4448747

Test: tested as part of http://go/ag/4674759
Change-Id: I29005397efcc2e982e635581cc68c8293cea6243

libwvdrmengine/cdm/core/include/cdm_session.h

@@ -10,8 +10,8 @@
 #include <vector>
 
 #include "crypto_session.h"
-#include "disallow_copy_and_assign.h"
 #include "device_files.h"
+#include "disallow_copy_and_assign.h"
 #include "file_store.h"
 #include "initialization_data.h"
 #include "license.h"