Updated copyright notice and cleaned up includes.

[ Merge of http://go/wvgerrit/137810 ]

Bug: 204946540
Test: Metric unit tests
Change-Id: I78f839fafd27604a2bb78c04d587c40919c5372d

libwvdrmengine/cdm/metrics/include/attribute_handler.h

@@ -1,21 +1,18 @@
-// Copyright 2018 Google Inc. All Rights Reserved.
+// Copyright 2018 Google LLC. All Rights Reserved. This file and proprietary
+// source code may only be used and distributed under the Widevine License
+// Agreement.
 //
 // This file contains the declarations for the EventMetric class and related
 // types.
 #ifndef WVCDM_METRICS_ATTRIBUTE_HANDLER_H_
 #define WVCDM_METRICS_ATTRIBUTE_HANDLER_H_
+#include <string>
 
-#include "OEMCryptoCENC.h"
-#include "field_tuples.h"
 #include "log.h"
-#include "pow2bucket.h"
-#include "value_metric.h"
-#include "wv_cdm_types.h"
 #include "wv_metrics.pb.h"
 
 namespace wvcdm {
 namespace metrics {
-
 // This method is used to set the value of a single proto field.
 // Specializations handle setting each value.
 template <int I, typename F>
@@ -47,7 +44,6 @@ class AttributeHandler {
     return serialized_attributes;
   }
 };
-
 }  // namespace metrics
 }  // namespace wvcdm
 #endif  // WVCDM_METRICS_ATTRIBUTE_HANDLER_H_