Enable debugallocation by default (try 3 or so).

base/metrics/statistics_recorder.cc

 // 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.
 
 #include "base/metrics/statistics_recorder.h"
 
 #include "base/debug/leak_annotations.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
@@ skipping 43 matching lines @@
   if (lock_ == NULL) {
     ANNOTATE_LEAKING_OBJECT_PTR(histogram);  // see crbug.com/79322
     return histogram;
   }
 
   Histogram* histogram_to_delete = NULL;
   Histogram* histogram_to_return = NULL;
   {
     base::AutoLock auto_lock(*lock_);
     if (histograms_ == NULL) {
-      ANNOTATE_LEAKING_OBJECT_PTR(histogram);  // see crbug.com/79322
       histogram_to_return = histogram;
     } else {
       const string& name = histogram->histogram_name();
       HistogramMap::iterator it = histograms_->find(name);
       if (histograms_->end() == it) {
         (*histograms_)[name] = histogram;
         ANNOTATE_LEAKING_OBJECT_PTR(histogram);  // see crbug.com/79322
         ++number_of_histograms_;
         histogram_to_return = histogram;
       } else if (histogram == it->second) {
@@ skipping 256 matching lines @@
 // static
 StatisticsRecorder::HistogramMap* StatisticsRecorder::histograms_ = NULL;
 // static
 StatisticsRecorder::RangesMap* StatisticsRecorder::ranges_ = NULL;
 // static
 base::Lock* StatisticsRecorder::lock_ = NULL;
 // static
 bool StatisticsRecorder::dump_on_exit_ = false;
 
 }  // namespace base