NOT FOR REVIEW - Slow Reports Reference Implementation

base/metrics/histogram_base.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/histogram_base.h"
 
 #include <climits>
 
 #include "base/json/json_string_value_serializer.h"
 #include "base/logging.h"
@@ skipping 68 matching lines @@
 }
 
 void HistogramBase::AddTime(const TimeDelta& time) {
   Add(static_cast<Sample>(time.InMilliseconds()));
 }
 
 void HistogramBase::AddBoolean(bool value) {
   Add(value ? 1 : 0);
 }
 
+void HistogramBase::SetCallback(const HistogramBase::ModifiedCallback& cb) {
+  callback_ = cb;
+}
+
 bool HistogramBase::SerializeInfo(Pickle* pickle) const {
   if (!pickle->WriteInt(GetHistogramType()))
     return false;
   return SerializeInfoImpl(pickle);
 }
 
 int HistogramBase::FindCorruption(const HistogramSamples& samples) const {
   // Not supported by default.
   return NO_INCONSISTENCIES;
 }
@@ skipping 43 matching lines @@
   return result;
 }
 
 void HistogramBase::WriteAsciiBucketValue(Count current,
                                           double scaled_sum,
                                           std::string* output) const {
   StringAppendF(output, " (%d = %3.1f%%)", current, current/scaled_sum);
 }
 
 }  // namespace base