[FileAPI] Replace default leveldb::Env with leveldb::MemEnv in tests.

webkit/browser/fileapi/sandbox_file_system_backend_delegate.cc

 // Copyright 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 "webkit/browser/fileapi/sandbox_file_system_backend_delegate.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
@@ skipping 162 matching lines @@
     quota::QuotaManagerProxy* quota_manager_proxy,
     base::SequencedTaskRunner* file_task_runner,
     const base::FilePath& profile_path,
     quota::SpecialStoragePolicy* special_storage_policy,
     const FileSystemOptions& file_system_options)
     : file_task_runner_(file_task_runner),
       sandbox_file_util_(new AsyncFileUtilAdapter(
           new ObfuscatedFileUtil(
               special_storage_policy,
               profile_path.Append(kFileSystemDirectory),
+              file_system_options.env_override(),
               file_task_runner,
               base::Bind(&GetTypeStringForURL),
               GetKnownTypeStrings(),
               this))),
       file_system_usage_cache_(new FileSystemUsageCache(file_task_runner)),
       quota_observer_(new SandboxQuotaObserver(
           quota_manager_proxy,
           file_task_runner,
           obfuscated_file_util(),
           usage_cache())),
@@ skipping 460 matching lines @@
 
 ObfuscatedFileUtil* SandboxFileSystemBackendDelegate::obfuscated_file_util() {
   return static_cast<ObfuscatedFileUtil*>(sync_file_util());
 }
 
 // Declared in obfuscated_file_util.h.
 // static
 ObfuscatedFileUtil* ObfuscatedFileUtil::CreateForTesting(
     quota::SpecialStoragePolicy* special_storage_policy,
     const base::FilePath& file_system_directory,
+    leveldb::Env* env_override,
     base::SequencedTaskRunner* file_task_runner) {
   return new ObfuscatedFileUtil(special_storage_policy,
                                 file_system_directory,
+                                env_override,
                                 file_task_runner,
                                 base::Bind(&GetTypeStringForURL),
                                 GetKnownTypeStrings(),
                                 NULL);
 }
 
 }  // namespace fileapi