[Extensions] Convert APIs to use movable types [13]

extensions/browser/api/system_storage/storage_info_provider.cc

 // Copyright 2013 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/system_storage/storage_info_provider.h"
 
 #include "base/stl_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/sys_info.h"
 #include "base/threading/sequenced_worker_pool.h"
@@ skipping 29 matching lines @@
 // Static member intialization.
 base::LazyInstance<scoped_refptr<StorageInfoProvider> >
     StorageInfoProvider::provider_ = LAZY_INSTANCE_INITIALIZER;
 
 StorageInfoProvider::StorageInfoProvider() {
 }
 
 StorageInfoProvider::~StorageInfoProvider() {
 }
 
-const StorageUnitInfoList& StorageInfoProvider::storage_unit_info_list() const {
-  return info_;
-}
-
 void StorageInfoProvider::InitializeForTesting(
     scoped_refptr<StorageInfoProvider> provider) {
   DCHECK(provider.get() != NULL);
   provider_.Get() = provider;
 }
 
 void StorageInfoProvider::PrepareQueryOnUIThread() {
   // Get all available storage devices before invoking |QueryInfo()|.
   GetAllStoragesIntoInfoList();
 }
@@ skipping 15 matching lines @@
 }
 
 void StorageInfoProvider::GetAllStoragesIntoInfoList() {
   info_.clear();
   std::vector<StorageInfo> storage_list =
       StorageMonitor::GetInstance()->GetAllAvailableStorages();
 
   for (std::vector<StorageInfo>::const_iterator it = storage_list.begin();
        it != storage_list.end();
        ++it) {
-    linked_ptr<StorageUnitInfo> unit(new StorageUnitInfo());
-    systeminfo::BuildStorageUnitInfo(*it, unit.get());
-    info_.push_back(unit);
+    StorageUnitInfo unit;
+    systeminfo::BuildStorageUnitInfo(*it, &unit);
+    info_.push_back(std::move(unit));
   }
 }
 
 double StorageInfoProvider::GetStorageFreeSpaceFromTransientIdOnFileThread(
     const std::string& transient_id) {
   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
   std::vector<StorageInfo> storage_list =
       StorageMonitor::GetInstance()->GetAllAvailableStorages();
 
   std::string device_id =
@@ skipping 12 matching lines @@
 }
 
 // static
 StorageInfoProvider* StorageInfoProvider::Get() {
   if (provider_.Get().get() == NULL)
     provider_.Get() = new StorageInfoProvider();
   return provider_.Get().get();
 }
 
 }  // namespace extensions