Adding UseCounter specific for extensions

third_party/WebKit/Source/platform/testing/HistogramTester.cpp

 // Copyright 2016 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 "platform/testing/HistogramTester.h"
 
 #include "base/test/histogram_tester.h"
 #include "platform/wtf/PtrUtil.h"
 
 namespace blink {
@@ skipping 15 matching lines @@
     base::HistogramBase::Sample sample,
     base::HistogramBase::Count count) const {
   histogram_tester_->ExpectBucketCount(name, sample, count);
 }
 
 void HistogramTester::ExpectTotalCount(const std::string& name,
                                        base::HistogramBase::Count count) const {
   histogram_tester_->ExpectTotalCount(name, count);
 }
 
+base::HistogramBase::Count HistogramTester::GetBucketCount(
+    const std::string& name,
+    base::HistogramBase::Sample sample) const {
+  return histogram_tester_->GetBucketCount(name, sample);
+}
+
 }  // namespace blink