Convert Pass()→std::move() in //components/[n-z]*

components/rappor/sampler.cc

 // Copyright 2015 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 "components/rappor/sampler.h"
 
 #include <map>
 #include <string>
+#include <utility>
 
 #include "base/rand_util.h"
 
 namespace rappor {
 
 namespace internal {
 
 Sampler::Sampler() {}
 
 Sampler::~Sampler() {}
 
 void Sampler::AddSample(const std::string& metric_name,
                         scoped_ptr<Sample> sample) {
   ++sample_counts_[metric_name];
   // Replace the previous sample with a 1 in sample_count_ chance so that each
   // sample has equal probability of being reported.
   if (base::RandGenerator(sample_counts_[metric_name]) == 0)
-    samples_.set(metric_name, sample.Pass());
+    samples_.set(metric_name, std::move(sample));
 }
 
 void Sampler::ExportMetrics(const std::string& secret, RapporReports* reports) {
   for (const auto& kv : samples_) {
     kv.second->ExportMetrics(secret, kv.first, reports);
   }
   samples_.clear();
   sample_counts_.clear();
 }
 
 }  // namespace internal
 
 }  // namespace rappor