Move HashMetricName to base namespace.

components/rappor/rappor_service_unittest.cc

Index: components/rappor/rappor_service_unittest.cc
diff --git a/components/rappor/rappor_service_unittest.cc b/components/rappor/rappor_service_unittest.cc
index 3b38c1af01a88e710cbdfc0609d116a710b75de6..93a981ae94a1da6cab3e77475a942c7b2afb1f79 100644
--- a/components/rappor/rappor_service_unittest.cc
+++ b/components/rappor/rappor_service_unittest.cc
@@ -5,8 +5,8 @@
 #include "components/rappor/rappor_service.h"
 
 #include "base/base64.h"
+#include "base/metrics/metrics_hashes.h"
 #include "base/prefs/testing_pref_service.h"
-#include "components/metrics/metrics_hashes.h"
 #include "components/rappor/byte_vector_utils.h"
 #include "components/rappor/proto/rappor_metric.pb.h"
 #include "components/rappor/rappor_parameters.h"
@@ -122,8 +122,8 @@ TEST(RapporServiceTest, RecordSample) {
   sample->SetStringField("Url", "example.com");
   sample->SetFlagsField("Flags1", 0xbcd, 12);
   rappor_service.RecordSampleObj("ObjMetric", sample.Pass());
-  uint64_t url_hash = metrics::HashMetricName("ObjMetric.Url");
-  uint64_t flags_hash = metrics::HashMetricName("ObjMetric.Flags1");
+  uint64_t url_hash = base::HashMetricName("ObjMetric.Url");
+  uint64_t flags_hash = base::HashMetricName("ObjMetric.Flags1");
   RapporReports reports;
   rappor_service.GetReports(&reports);
   EXPECT_EQ(2, reports.report_size());