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

chrome/browser/sync_file_system/drive_backend/leveldb_wrapper.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 "chrome/browser/sync_file_system/drive_backend/leveldb_wrapper.h"
 
 #include <map>
 #include <set>
 #include <string>
+#include <utility>
 
 #include "base/logging.h"
 #include "third_party/leveldatabase/src/include/leveldb/db.h"
 #include "third_party/leveldatabase/src/include/leveldb/iterator.h"
 #include "third_party/leveldatabase/src/include/leveldb/slice.h"
 #include "third_party/leveldatabase/src/include/leveldb/status.h"
 #include "third_party/leveldatabase/src/include/leveldb/write_batch.h"
 
 namespace sync_file_system {
 namespace drive_backend {
@@ skipping 117 matching lines @@
 
   while (map_iterator_ != db_->pending_.end() &&
          map_iterator_->second.first == DELETE_OPERATION)
     ++map_iterator_;
 }
 
 // ---------------------------------------------------------------------------
 // LevelDBWrapper class
 // ---------------------------------------------------------------------------
 LevelDBWrapper::LevelDBWrapper(scoped_ptr<leveldb::DB> db)
-    : db_(db.Pass()), num_puts_(0), num_deletes_(0) {
+    : db_(std::move(db)), num_puts_(0), num_deletes_(0) {
   DCHECK(db_);
 }
 
 LevelDBWrapper::~LevelDBWrapper() {}
 
 void LevelDBWrapper::Put(const std::string& key, const std::string& value) {
   pending_[key] = Transaction(PUT_OPERATION, value);
   ++num_puts_;
 }
 
@@ skipping 53 matching lines @@
   num_puts_ = 0;
   num_deletes_ = 0;
 }
 
 leveldb::DB* LevelDBWrapper::GetLevelDB() {
   return db_.get();
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system