Use leveldb_env::OpenDB() to open leveldb databases.

chrome/browser/sync_file_system/drive_backend/leveldb_wrapper_unittest.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 <stddef.h>
 
 #include <string>
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/leveldatabase/env_chromium.h"
 #include "third_party/leveldatabase/src/helpers/memenv/memenv.h"
 #include "third_party/leveldatabase/src/include/leveldb/db.h"
 #include "third_party/leveldatabase/src/include/leveldb/env.h"
 
 namespace sync_file_system {
 namespace drive_backend {
 
 struct TestData {
   const std::string key;
   const std::string value;
@@ skipping 40 matching lines @@
       ASSERT_TRUE(itr->Valid());
       EXPECT_EQ(expects[i].key, itr->key().ToString());
       EXPECT_EQ(expects[i].value, itr->value().ToString());
       itr->Next();
     }
     EXPECT_FALSE(itr->Valid());
   }
 
  private:
   void InitializeLevelDB() {
-    leveldb::DB* db = nullptr;
+    std::unique_ptr<leveldb::DB> db;
     leveldb::Options options;
     options.create_if_missing = true;
     options.max_open_files = 0;  // Use minimum.
     options.env = in_memory_env_.get();
-    leveldb::Status status =
-        leveldb::DB::Open(options, database_dir_.GetPath().AsUTF8Unsafe(), &db);
+    leveldb::Status status = leveldb_env::OpenDB(
+        options, database_dir_.GetPath().AsUTF8Unsafe(), &db);
     ASSERT_TRUE(status.ok());
 
-    db_.reset(new LevelDBWrapper(base::WrapUnique(db)));
+    db_.reset(new LevelDBWrapper(std::move(db)));
   }
 
   base::ScopedTempDir database_dir_;
   std::unique_ptr<leveldb::Env> in_memory_env_;
   std::unique_ptr<LevelDBWrapper> db_;
 };
 
 TEST_F(LevelDBWrapperTest, IteratorTest) {
   CreateDefaultDatabase();
   std::unique_ptr<LevelDBWrapper::Iterator> itr = GetDB()->NewIterator();
@@ skipping 139 matching lines @@
 
   EXPECT_EQ(0, GetDB()->num_puts());
   EXPECT_EQ(0, GetDB()->num_deletes());
 
   SCOPED_TRACE("DeleteTest_Commit");
   CheckDBContents(merged_data, arraysize(merged_data));
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system