Add OVERRIDE to net/.

net/disk_cache/stats_histogram.h

 // Copyright (c) 2011 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.
 
 #ifndef NET_DISK_CACHE_STATS_HISTOGRAM_H_
 #define NET_DISK_CACHE_STATS_HISTOGRAM_H_
 #pragma once
 
 #include <string>
 
@@ skipping 22 matching lines @@
   StatsHistogram(const std::string& name, Sample minimum,
                  Sample maximum, size_t bucket_count)
       : Histogram(name, minimum, maximum, bucket_count), init_(false) {}
   virtual ~StatsHistogram();
 
   static StatsHistogram* FactoryGet(const std::string& name);
 
   // We'll be reporting data from the given set of cache stats.
   bool Init(const Stats* stats);
 
-  virtual Sample ranges(size_t i) const;
-  virtual size_t bucket_count() const;
-  virtual void SnapshotSample(SampleSet* sample) const;
-  virtual Inconsistencies FindCorruption(const SampleSet& snapshot) const;
-  virtual uint32 CalculateRangeChecksum() const;
+  virtual Sample ranges(size_t i) const OVERRIDE;
+  virtual size_t bucket_count() const OVERRIDE;
+  virtual void SnapshotSample(SampleSet* sample) const OVERRIDE;
+  virtual Inconsistencies FindCorruption(
+      const SampleSet& snapshot) const OVERRIDE;
+  virtual uint32 CalculateRangeChecksum() const OVERRIDE;
 
  private:
   bool init_;
   static const Stats* stats_;
   DISALLOW_COPY_AND_ASSIGN(StatsHistogram);
 };
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_STATS_HISTOGRAM_H_