replace OVERRIDE and FINAL with override and final in components/

components/metrics/metrics_service_unittest.cc

Index: components/metrics/metrics_service_unittest.cc
diff --git a/components/metrics/metrics_service_unittest.cc b/components/metrics/metrics_service_unittest.cc
index 3e4f50416a09d85f81b2474a1ec6e9813580a606..8bfbd54d3519abd8f0f625ebd85c947bce8ce443 100644
--- a/components/metrics/metrics_service_unittest.cc
+++ b/components/metrics/metrics_service_unittest.cc
@@ -38,9 +38,9 @@ class TestMetricsProvider : public metrics::MetricsProvider {
       provide_stability_metrics_called_(false) {
   }
 
-  virtual bool HasStabilityMetrics() OVERRIDE { return has_stability_metrics_; }
+  virtual bool HasStabilityMetrics() override { return has_stability_metrics_; }
   virtual void ProvideStabilityMetrics(
-      SystemProfileProto* system_profile_proto) OVERRIDE {
+      SystemProfileProto* system_profile_proto) override {
     provide_stability_metrics_called_ = true;
   }