Standardize usage of virtual/override/final specifiers.

chrome/browser/spellchecker/spellcheck_host_metrics_unittest.cc

Index: chrome/browser/spellchecker/spellcheck_host_metrics_unittest.cc
diff --git a/chrome/browser/spellchecker/spellcheck_host_metrics_unittest.cc b/chrome/browser/spellchecker/spellcheck_host_metrics_unittest.cc
index bfbd8149a16dc090b83d9bae27a90c38019ced10..f66379a8c7b22035308412a62e5c46c42fb70bb7 100644
--- a/chrome/browser/spellchecker/spellcheck_host_metrics_unittest.cc
+++ b/chrome/browser/spellchecker/spellcheck_host_metrics_unittest.cc
@@ -27,9 +27,7 @@ class SpellcheckHostMetricsTest : public testing::Test {
     base::StatisticsRecorder::Initialize();
   }
 
-  virtual void SetUp() override {
-    metrics_.reset(new SpellCheckHostMetrics);
-  }
+  void SetUp() override { metrics_.reset(new SpellCheckHostMetrics); }
 
   SpellCheckHostMetrics* metrics() { return metrics_.get(); }
   void RecordWordCountsForTesting() { metrics_->RecordWordCounts(); }