Standardize usage of virtual/override/final in base/

BUG=417463
TBR=danakj@chromium.org

Review URL: https://codereview.chromium.org/668783004

Cr-Commit-Position: refs/heads/master@{#300447}

1 files changed, 5 insertions, 6 deletions

diff --git a/base/metrics/histogram_snapshot_manager_unittest.cc b/base/metrics/histogram_snapshot_manager_unittest.cc
index 2da22be..5dd72a7 100644
--- a/base/metrics/histogram_snapshot_manager_unittest.cc
+++ b/base/metrics/histogram_snapshot_manager_unittest.cc
@@ -18,22 +18,21 @@ class HistogramFlattenerDeltaRecorder : public HistogramFlattener {
  public:
   HistogramFlattenerDeltaRecorder() {}
 
-  virtual void RecordDelta(const HistogramBase& histogram,
-                           const HistogramSamples& snapshot) override {
+  void RecordDelta(const HistogramBase& histogram,
+                   const HistogramSamples& snapshot) override {
     recorded_delta_histogram_names_.push_back(histogram.histogram_name());
   }
 
-  virtual void InconsistencyDetected(
-      HistogramBase::Inconsistency problem) override {
+  void InconsistencyDetected(HistogramBase::Inconsistency problem) override {
     ASSERT_TRUE(false);
   }
 
-  virtual void UniqueInconsistencyDetected(
+  void UniqueInconsistencyDetected(
       HistogramBase::Inconsistency problem) override {
     ASSERT_TRUE(false);
   }
 
-  virtual void InconsistencyDetectedInLoggedCount(int amount) override {
+  void InconsistencyDetectedInLoggedCount(int amount) override {
     ASSERT_TRUE(false);
   }