Fix lifetime of leveldb::MojoEnv instances.

content/browser/dom_storage/local_storage_context_mojo_unittest.cc

 // Copyright 2016 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 "content/browser/dom_storage/local_storage_context_mojo.h"
 
 #include "base/files/file_enumerator.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 801 matching lines @@
   DoTestPut(context.get(), key, value);
   std::vector<uint8_t> result;
   EXPECT_TRUE(DoTestGet(context.get(), key, &result));
   EXPECT_EQ(value, result);
 
   context.reset();
   base::RunLoop().RunUntilIdle();
 
   {
     // Mess up version number in database.
-    leveldb_env::ChromiumEnv env;
     leveldb::DB* db = nullptr;
     leveldb::Options options;
-    options.env = &env;
     base::FilePath db_path =
         temp_path().Append(test_path).Append(FILE_PATH_LITERAL("leveldb"));
     ASSERT_TRUE(leveldb::DB::Open(options, db_path.AsUTF8Unsafe(), &db).ok());
     std::unique_ptr<leveldb::DB> db_owner(db);
     ASSERT_TRUE(db->Put(leveldb::WriteOptions(), "VERSION", "argh").ok());
   }
 
   // Make sure data is gone.
   context = base::MakeUnique<LocalStorageContextMojo>(
       connector(), nullptr, base::FilePath(), test_path);
   EXPECT_FALSE(DoTestGet(context.get(), key, &result));
 
   // Write data again.
   DoTestPut(context.get(), key, value);
 
   context.reset();
   base::RunLoop().RunUntilIdle();
 
   // Data should have been preserved now.
   context = base::MakeUnique<LocalStorageContextMojo>(
       connector(), nullptr, base::FilePath(), test_path);
   EXPECT_TRUE(DoTestGet(context.get(), key, &result));
   EXPECT_EQ(value, result);
 }
 
 }  // namespace content