Convert Pass()→std::move() in //chrome

chrome/browser/download/download_history.cc

 // Copyright (c) 2012 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.
 
 // DownloadHistory manages persisting DownloadItems to the history service by
 // observing a single DownloadManager and all its DownloadItems using an
 // AllDownloadItemNotifier.
 //
 // DownloadHistory decides whether and when to add items to, remove items from,
 // and update items in the database. DownloadHistory uses DownloadHistoryData to
@@ skipping 10 matching lines @@
 // item is still being added to the database, DownloadHistory uses
 // |removed_while_adding_| to remember to remove the item when its ItemAdded()
 // callback is called.  All callbacks are bound with a weak pointer to
 // DownloadHistory to prevent use-after-free bugs.
 // ChromeDownloadManagerDelegate owns DownloadHistory, and deletes it in
 // Shutdown(), which is called by DownloadManagerImpl::Shutdown() after all
 // DownloadItems are destroyed.
 
 #include "chrome/browser/download/download_history.h"
 
+#include <utility>
+
 #include "base/macros.h"
 #include "base/metrics/histogram.h"
 #include "chrome/browser/download/download_crx_util.h"
 #include "components/history/content/browser/download_constants_utils.h"
 #include "components/history/core/browser/download_database.h"
 #include "components/history/core/browser/download_row.h"
 #include "components/history/core/browser/history_service.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/download_manager.h"
@@ skipping 160 matching lines @@
 DownloadHistory::Observer::~Observer() {}
 
 // static
 bool DownloadHistory::IsPersisted(const content::DownloadItem* item) {
   const DownloadHistoryData* data = DownloadHistoryData::Get(item);
   return data && (data->state() == DownloadHistoryData::PERSISTED);
 }
 
 DownloadHistory::DownloadHistory(content::DownloadManager* manager,
                                  scoped_ptr<HistoryAdapter> history)
-  : notifier_(manager, this),
-    history_(history.Pass()),
-    loading_id_(content::DownloadItem::kInvalidId),
-    history_size_(0),
-    weak_ptr_factory_(this) {
+    : notifier_(manager, this),
+      history_(std::move(history)),
+      loading_id_(content::DownloadItem::kInvalidId),
+      history_size_(0),
+      weak_ptr_factory_(this) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   content::DownloadManager::DownloadVector items;
   notifier_.GetManager()->GetAllDownloads(&items);
   for (content::DownloadManager::DownloadVector::const_iterator
        it = items.begin(); it != items.end(); ++it) {
     OnDownloadCreated(notifier_.GetManager(), *it);
   }
   history_->QueryDownloads(base::Bind(
       &DownloadHistory::QueryCallback, weak_ptr_factory_.GetWeakPtr()));
 }
@@ skipping 232 matching lines @@
   removing_ids_.insert(download_id);
 }
 
 void DownloadHistory::RemoveDownloadsBatch() {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   IdSet remove_ids;
   removing_ids_.swap(remove_ids);
   history_->RemoveDownloads(remove_ids);
   FOR_EACH_OBSERVER(Observer, observers_, OnDownloadsRemoved(remove_ids));
 }