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

storage/browser/database/database_tracker.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.
 
 #include "storage/browser/database/database_tracker.h"
 
 #include <stdint.h>
-
 #include <algorithm>
+#include <utility>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "net/base/net_errors.h"
 #include "sql/connection.h"
 #include "sql/meta_table.h"
@@ skipping 734 matching lines @@
   return NULL;
 }
 
 const base::File* DatabaseTracker::SaveIncognitoFile(
     const base::string16& vfs_file_name,
     base::File file) {
   DCHECK(is_incognito_);
   if (!file.IsValid())
     return NULL;
 
-  base::File* to_insert = new base::File(file.Pass());
+  base::File* to_insert = new base::File(std::move(file));
   std::pair<FileHandlesMap::iterator, bool> rv =
       incognito_file_handles_.insert(std::make_pair(vfs_file_name, to_insert));
   DCHECK(rv.second);
   return rv.first->second;
 }
 
 void DatabaseTracker::CloseIncognitoFileHandle(
     const base::string16& vfs_file_name) {
   DCHECK(is_incognito_);
   DCHECK(incognito_file_handles_.find(vfs_file_name) !=
@@ skipping 87 matching lines @@
   if (!db_tracker_thread_->BelongsToCurrentThread()) {
     db_tracker_thread_->PostTask(
         FROM_HERE,
         base::Bind(&DatabaseTracker::SetForceKeepSessionState, this));
     return;
   }
   force_keep_session_state_ = true;
 }
 
 }  // namespace storage