s/ passed(...) / WTF::passed(...) / to avoid future ambiguity w/ base::Passed.

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 "wtf/PtrUtil.h"
 
 namespace blink {
 
 HistogramTester::HistogramTester()
-    : m_histogramTester(wrapUnique(new base::HistogramTester)) {}
+    : m_histogramTester(WTF::wrapUnique(new base::HistogramTester)) {}
 
 HistogramTester::~HistogramTester() {}
 
 void HistogramTester::expectUniqueSample(
     const std::string& name,
     base::HistogramBase::Sample sample,
     base::HistogramBase::Count count) const {
   m_histogramTester->ExpectUniqueSample(name, sample, count);
 }
 
 void HistogramTester::expectBucketCount(
     const std::string& name,
     base::HistogramBase::Sample sample,
     base::HistogramBase::Count count) const {
   m_histogramTester->ExpectBucketCount(name, sample, count);
 }
 
 void HistogramTester::expectTotalCount(const std::string& name,
                                        base::HistogramBase::Count count) const {
   m_histogramTester->ExpectTotalCount(name, count);
 }
 
 }  // namespace blink