Connect SparseHistogram with the rest of stats system

chrome/browser/chrome_browser_application_mac_unittest.mm

 // 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.
 
 #import <Cocoa/Cocoa.h>
 
 #import "base/mac/scoped_nsexception_enabler.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/statistics_recorder.h"
 #import "chrome/browser/chrome_browser_application_mac.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-using base::Histogram;
+using base::HistogramBase;
 using base::HistogramSamples;
 using base::StatisticsRecorder;
 
 namespace chrome_browser_application_mac {
 
 // Generate an NSException with the given name.
 NSException* ExceptionNamed(NSString* name) {
   base::mac::ScopedNSExceptionEnabler enabler;
 
   return [NSException exceptionWithName:name
@@ skipping 43 matching lines @@
 
   // Record some unknown exceptions.
   RecordExceptionWithUma(ExceptionNamed(@"CustomName"));
   RecordExceptionWithUma(ExceptionNamed(@"Custom Name"));
   RecordExceptionWithUma(ExceptionNamed(@""));
   RecordExceptionWithUma(nil);
 
   // We should have exactly the right number of exceptions.
   StatisticsRecorder::GetSnapshot("OSX.NSException", &histograms);
   EXPECT_EQ(1U, histograms.size());
-  EXPECT_EQ(Histogram::kUmaTargetedHistogramFlag, histograms[0]->flags());
+  EXPECT_EQ(HistogramBase::kUmaTargetedHistogramFlag, histograms[0]->flags());
 
   scoped_ptr<HistogramSamples> samples(histograms[0]->SnapshotSamples());
   EXPECT_EQ(4, samples->GetCount(0));
   EXPECT_EQ(1, samples->GetCount(1));
   EXPECT_EQ(3, samples->GetCount(2));
   EXPECT_EQ(2, samples->GetCount(3));
 
   // The unknown exceptions should end up in the overflow bucket.
-  EXPECT_EQ(kUnknownNSException + 1, histograms[0]->bucket_count());
+  EXPECT_TRUE(histograms[0]->HasConstructionArguments(1,
+                                                      kUnknownNSException,
+                                                      kUnknownNSException + 1));
   EXPECT_EQ(4, samples->GetCount(kUnknownNSException));
 }
 
 }  // chrome_browser_application_mac