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

webkit/browser/fileapi/sandbox_directory_database.h

 // Copyright (c) 2012 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.
 
 #ifndef WEBKIT_BROWSER_FILEAPI_SANDBOX_DIRECTORY_DATABASE_H_
 #define WEBKIT_BROWSER_FILEAPI_SANDBOX_DIRECTORY_DATABASE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "webkit/browser/webkit_storage_browser_export.h"
 
 namespace tracked_objects {
 class Location;
 }
 
 namespace leveldb {
 class DB;
+class Env;
 class Status;
 class WriteBatch;
 }
 
 namespace fileapi {
 
 // This class WILL NOT protect you against producing directory loops, giving an
 // empty directory a backing data file, giving two files the same backing file,
 // or pointing to a nonexistent backing file.  It does no file IO other than
 // that involved with talking to its underlying database.  It does not create or
@@ skipping 16 matching lines @@
 
     FileId parent_id;
     base::FilePath data_path;
     base::FilePath::StringType name;
     // This modification time is valid only for directories, not files, as
     // FileWriter will get the files out of sync.
     // For files, look at the modification time of the underlying data_path.
     base::Time modification_time;
   };
 
-  explicit SandboxDirectoryDatabase(
-      const base::FilePath& filesystem_data_directory);
+  SandboxDirectoryDatabase(
+      const base::FilePath& filesystem_data_directory,
+      leveldb::Env* env_override);
   ~SandboxDirectoryDatabase();
 
   bool GetChildWithName(
       FileId parent_id,
       const base::FilePath::StringType& name,
       FileId* child_id);
   bool GetFileWithPath(const base::FilePath& path, FileId* file_id);
   // ListChildren will succeed, returning 0 children, if parent_id doesn't
   // exist.
   bool ListChildren(FileId parent_id, std::vector<FileId>* children);
@@ skipping 15 matching lines @@
   // This produces the series 0, 1, 2..., starting at 0 when the underlying
   // filesystem is first created, and maintaining state across
   // creation/destruction of SandboxDirectoryDatabase objects.
   bool GetNextInteger(int64* next);
 
   bool IsDirectory(FileId file_id);
 
   // Returns true if the database looks consistent with local filesystem.
   bool IsFileSystemConsistent();
 
-  static bool DestroyDatabase(const base::FilePath& path);
+  static bool DestroyDatabase(const base::FilePath& path,
+                              leveldb::Env* env_override);
 
  private:
   enum RecoveryOption {
     DELETE_ON_CORRUPTION,
     REPAIR_ON_CORRUPTION,
     FAIL_ON_CORRUPTION,
   };
 
   friend class ObfuscatedFileUtil;
   friend class SandboxDirectoryDatabaseTest;
 
   bool Init(RecoveryOption recovery_option);
   bool RepairDatabase(const std::string& db_path);
   void ReportInitStatus(const leveldb::Status& status);
   bool StoreDefaultValues();
   bool GetLastFileId(FileId* file_id);
   bool AddFileInfoHelper(
       const FileInfo& info, FileId file_id, leveldb::WriteBatch* batch);
   bool RemoveFileInfoHelper(FileId file_id, leveldb::WriteBatch* batch);
   void HandleError(const tracked_objects::Location& from_here,
                    const leveldb::Status& status);
 
   const base::FilePath filesystem_data_directory_;
+  leveldb::Env* env_override_;
   scoped_ptr<leveldb::DB> db_;
   base::Time last_reported_time_;
   DISALLOW_COPY_AND_ASSIGN(SandboxDirectoryDatabase);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_SANDBOX_DIRECTORY_DATABASE_H_