Use reset() to delete the contents of a scoped_ptr, not Pass().

content/browser/indexed_db/leveldb/leveldb_unittest.cc

 // Copyright (c) 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 <algorithm>
 #include <cstring>
 #include <string>
 
 #include "base/files/file.h"
 #include "base/files/file_path.h"
@@ skipping 33 matching lines @@
   std::string put_value;
   std::string got_value;
   SimpleComparator comparator;
 
   scoped_ptr<LevelDBDatabase> leveldb;
   LevelDBDatabase::Open(temp_directory.path(), &comparator, &leveldb);
   EXPECT_TRUE(leveldb);
   put_value = value;
   leveldb::Status status = leveldb->Put(key, &put_value);
   EXPECT_TRUE(status.ok());
-  leveldb.Pass();
+  leveldb.reset();
   EXPECT_FALSE(leveldb);
 
   LevelDBDatabase::Open(temp_directory.path(), &comparator, &leveldb);
   EXPECT_TRUE(leveldb);
   bool found = false;
   status = leveldb->Get(key, &got_value, &found);
   EXPECT_TRUE(status.ok());
   EXPECT_TRUE(found);
   EXPECT_EQ(value, got_value);
-  leveldb.Pass();
+  leveldb.reset();
   EXPECT_FALSE(leveldb);
 
   base::FilePath file_path = temp_directory.path().AppendASCII("CURRENT");
   base::File file(file_path, base::File::FLAG_OPEN | base::File::FLAG_WRITE);
   file.SetLength(0);
   file.Close();
 
   status = LevelDBDatabase::Open(temp_directory.path(), &comparator, &leveldb);
   EXPECT_FALSE(leveldb);
   EXPECT_FALSE(status.ok());
@@ skipping 183 matching lines @@
 
   leveldb::FileLock* lock2;
   status = env->LockFile(file.AsUTF8Unsafe(), &lock2);
   EXPECT_FALSE(status.ok());
 
   status = env->UnlockFile(lock);
   EXPECT_TRUE(status.ok());
 }
 
 }  // namespace content