Add Missing Header to CDM Engine Metrics Decorator

(This is a merge of http://go/wvgerrit/83324)

Bug: 134116645
Test: Build
Change-Id: I813381437201b9e7842ba491c36d58c9be4efdda

libwvdrmengine/cdm/core/include/cdm_engine_metrics_decorator.h

@@ -17,6 +17,7 @@
 #include "disallow_copy_and_assign.h"
 #include "file_store.h"
 #include "initialization_data.h"
+#include "log.h"
 #include "metrics_collections.h"
 #include "oemcrypto_adapter.h"
 #include "properties.h"