Expose macros from base/metrics/histogram_macros.h as functions

base/test/histogram_tester.cc

 // Copyright 2014 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/test/histogram_tester.h"
 
 #include <stddef.h>
 
 #include "base/metrics/histogram.h"
 #include "base/metrics/histogram_samples.h"
@@ skipping 60 matching lines @@
   if (histogram) {
     std::unique_ptr<base::HistogramSamples> samples =
         histogram->SnapshotSamples();
     CheckTotalCount(name, count, *samples);
   } else {
     // No histogram means there were zero samples.
     EXPECT_EQ(count, 0) << "Histogram \"" << name << "\" does not exist.";
   }
 }
 
+void HistogramTester::ExpectTimeBucketCount(
+    const std::string& name,
+    base::TimeDelta sample,
+    base::HistogramBase::Count count) const {
+  ExpectBucketCount(name, sample.InMilliseconds(), count);
+}
+
 std::vector<Bucket> HistogramTester::GetAllSamples(
     const std::string& name) const {
   std::vector<Bucket> samples;
   std::unique_ptr<HistogramSamples> snapshot =
       GetHistogramSamplesSinceCreation(name);
   if (snapshot) {
     for (auto it = snapshot->Iterator(); !it->Done(); it->Next()) {
       HistogramBase::Sample sample;
       HistogramBase::Count count;
       it->Get(&sample, nullptr, &count);
@@ skipping 81 matching lines @@
 
 bool Bucket::operator==(const Bucket& other) const {
   return min == other.min && count == other.count;
 }
 
 void PrintTo(const Bucket& bucket, std::ostream* os) {
   *os << "Bucket " << bucket.min << ": " << bucket.count;
 }
 
 }  // namespace base