Re-write many calls to WrapUnique() with MakeUnique()

extensions/common/value_counter.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 "extensions/common/value_counter.h"
 
 #include <algorithm>
 #include <memory>
 #include <utility>
 
@@ skipping 16 matching lines @@
 ValueCounter::~ValueCounter() {
 }
 
 bool ValueCounter::Add(const base::Value& value) {
   for (const auto& entry : entries_) {
     if (entry->value->Equals(&value)) {
       ++entry->count;
       return false;
     }
   }
-  entries_.push_back(base::WrapUnique(new Entry(value.CreateDeepCopy())));
+  entries_.push_back(base::MakeUnique<Entry>(value.CreateDeepCopy()));
   return true;
 }
 
 bool ValueCounter::Remove(const base::Value& value) {
   for (auto it = entries_.begin(); it != entries_.end(); ++it) {
     if ((*it)->value->Equals(&value)) {
       if (--(*it)->count == 0) {
         std::swap(*it, entries_.back());
         entries_.pop_back();
         return true;  // Removed the last entry.
       }
       return false;  // Removed, but no the last entry.
     }
   }
   return false;  // Nothing to remove.
 }
 
 }  // namespace extensions