Small cleanup for previous histogram checkin...

net/disk_cache/stats_histogram.cc

 // Copyright (c) 2008 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.
 
 #include "net/disk_cache/stats_histogram.h"
 
 #include "base/logging.h"
 #include "net/disk_cache/stats.h"
 
 namespace disk_cache {
@@ skipping 18 matching lines @@
   Sample maximum = disk_cache::Stats::kDataSizesLength - 1;
   size_t bucket_count = disk_cache::Stats::kDataSizesLength;
 
   if (StatisticsRecorder::FindHistogram(name, &histogram)) {
     DCHECK(histogram.get() != NULL);
   } else {
     StatsHistogram* stats_histogram = new StatsHistogram(name, minimum, maximum,
                                                          bucket_count);
     stats_histogram->InitializeBucketRange();
     histogram = stats_histogram;
-    StatisticsRecorder::Register(&histogram);
+    StatisticsRecorder::RegisterOrDiscardDuplicate(&histogram);
   }
 
   DCHECK(HISTOGRAM == histogram->histogram_type());
   DCHECK(histogram->HasConstructorArguments(minimum, maximum, bucket_count));
 
   // We're preparing for an otherwise unsafe upcast by ensuring we have the
   // proper class type.
   Histogram* temp_histogram = histogram.get();
   StatsHistogram* temp_stats_histogram =
       static_cast<StatsHistogram*>(temp_histogram);
@@ skipping 43 matching lines @@
   return NO_INCONSISTENCIES;  // This class won't monitor inconsistencies.
 }
 
 uint32 StatsHistogram::CalculateRangeChecksum() const {
   // We don't calculate checksums, so at least establish a unique constant.
   const uint32 kStatsHistogramChecksum = 0x0cecce;
   return kStatsHistogramChecksum;
 }
 
 }  // namespace disk_cache