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/test/metrics_collections_test.cpp

@@ -1,24 +1,20 @@
-// Copyright 2017 Google Inc. All Rights Reserved.
+// Copyright 2017 Google LLC. All Rights Reserved. This file and proprietary
+// source code may only be used and distributed under the Widevine License
+// Agreement.
 //
 // Unit tests for the metrics collections,
 // EngineMetrics, SessionMetrics and CrytpoMetrics.
-
 #include "metrics_collections.h"
 
-#include <sstream>
+#include <gtest/gtest.h>
 
-#include "gmock/gmock.h"
-#include "google/protobuf/text_format.h"
-#include "gtest/gtest.h"
 #include "log.h"
 #include "wv_cdm_types.h"
 #include "wv_metrics.pb.h"
 
-using drm_metrics::MetricsGroup;
-using google::protobuf::TextFormat;
-
 namespace wvcdm {
 namespace metrics {
+using drm_metrics::MetricsGroup;
 
 // TODO(blueeyes): Improve this implementation by supporting full message
 // API In CDM. That allows us to use MessageDifferencer.
@@ -432,6 +428,5 @@ TEST_F(CryptoMetricsTest, AllCryptoMetrics) {
   // No subgroups should exist.
   EXPECT_EQ(0, actual_metrics.metric_sub_group_size());
 }
-
 }  // namespace metrics
 }  // namespace wvcdm