replace 'virtual ... OVERRIDE' with '... override'

base/metrics/sample_vector.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // SampleVector implements HistogramSamples interface. It is used by all
 // Histogram based classes to store samples.
 
 #ifndef BASE_METRICS_SAMPLE_VECTOR_H_
 #define BASE_METRICS_SAMPLE_VECTOR_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram_base.h"
 #include "base/metrics/histogram_samples.h"
 
 namespace base {
 
 class BucketRanges;
 
 class BASE_EXPORT_PRIVATE SampleVector : public HistogramSamples {
  public:
   explicit SampleVector(const BucketRanges* bucket_ranges);
   virtual ~SampleVector();
 
   // HistogramSamples implementation:
-  virtual void Accumulate(HistogramBase::Sample value,
-                          HistogramBase::Count count) OVERRIDE;
+  void Accumulate(HistogramBase::Sample value,
+                  HistogramBase::Count count) override;
   virtual HistogramBase::Count GetCount(
-      HistogramBase::Sample value) const OVERRIDE;
-  virtual HistogramBase::Count TotalCount() const OVERRIDE;
-  virtual scoped_ptr<SampleCountIterator> Iterator() const OVERRIDE;
+      HistogramBase::Sample value) const override;
+  HistogramBase::Count TotalCount() const override;
+  scoped_ptr<SampleCountIterator> Iterator() const override;
 
   // Get count of a specific bucket.
   HistogramBase::Count GetCountAtIndex(size_t bucket_index) const;
 
  protected:
-  virtual bool AddSubtractImpl(
-      SampleCountIterator* iter,
-      HistogramSamples::Operator op) OVERRIDE;  // |op| is ADD or SUBTRACT.
+  bool AddSubtractImpl(SampleCountIterator* iter, HistogramSamples::Operator op)
+      override;  // |op| is ADD or SUBTRACT.
 
   virtual size_t GetBucketIndex(HistogramBase::Sample value) const;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(HistogramTest, CorruptSampleCounts);
 
   std::vector<HistogramBase::AtomicCount> counts_;
 
   // Shares the same BucketRanges with Histogram object.
   const BucketRanges* const bucket_ranges_;
 
   DISALLOW_COPY_AND_ASSIGN(SampleVector);
 };
 
 class BASE_EXPORT_PRIVATE SampleVectorIterator : public SampleCountIterator {
  public:
   SampleVectorIterator(const std::vector<HistogramBase::AtomicCount>* counts,
                        const BucketRanges* bucket_ranges);
   virtual ~SampleVectorIterator();
 
   // SampleCountIterator implementation:
-  virtual bool Done() const OVERRIDE;
-  virtual void Next() OVERRIDE;
-  virtual void Get(HistogramBase::Sample* min,
-                   HistogramBase::Sample* max,
-                   HistogramBase::Count* count) const OVERRIDE;
+  bool Done() const override;
+  void Next() override;
+  void Get(HistogramBase::Sample* min,
+           HistogramBase::Sample* max,
+           HistogramBase::Count* count) const override;
 
   // SampleVector uses predefined buckets, so iterator can return bucket index.
-  virtual bool GetBucketIndex(size_t* index) const OVERRIDE;
+  bool GetBucketIndex(size_t* index) const override;
 
  private:
   void SkipEmptyBuckets();
 
   const std::vector<HistogramBase::AtomicCount>* counts_;
   const BucketRanges* bucket_ranges_;
 
   size_t index_;
 };
 
 }  // namespace base
 
 #endif  // BASE_METRICS_SAMPLE_VECTOR_H_