Convert //extensions/browser/api from scoped_ptr to std::unique_ptr

extensions/browser/api/storage/settings_storage_quota_enforcer.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/browser/api/storage/settings_storage_quota_enforcer.h"
 
+#include <memory>
+
 #include "base/bind.h"
 #include "base/json/json_writer.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/stl_util.h"
 #include "base/strings/stringprintf.h"
 #include "extensions/common/extension_api.h"
 
 namespace extensions {
 
 namespace {
 
@@ skipping 45 matching lines @@
   }
   CHECK(name);
   return ValueStore::Status(ValueStore::QUOTA_EXCEEDED,
                             base::StringPrintf("%s quota exceeded", name));
 }
 
 }  // namespace
 
 SettingsStorageQuotaEnforcer::SettingsStorageQuotaEnforcer(
     const Limits& limits,
-    scoped_ptr<ValueStore> delegate)
+    std::unique_ptr<ValueStore> delegate)
     : limits_(limits),
       delegate_(std::move(delegate)),
       used_total_(0),
       usage_calculated_(false) {}
 
 SettingsStorageQuotaEnforcer::~SettingsStorageQuotaEnforcer() {}
 
 size_t SettingsStorageQuotaEnforcer::GetBytesInUse(const std::string& key) {
   LazyCalculateUsage();
   std::map<std::string, size_t>::iterator maybe_used =
@@ skipping 167 matching lines @@
     return;
   auto it = used_per_setting_.find(key);
   if (it == used_per_setting_.end())
     return;
   DCHECK_GE(used_total_, it->second);
   used_total_ -= it->second;
   used_per_setting_.erase(it);
 }
 
 }  // namespace extensions