Add database recovery for FileSystemOriginDatabase

webkit/fileapi/file_system_directory_database.h

Index: webkit/fileapi/file_system_directory_database.h
diff --git a/webkit/fileapi/file_system_directory_database.h b/webkit/fileapi/file_system_directory_database.h
index 1c760b8e3fd8c487e708a8830553f0c576a625ce..c1286d950f56d70457595f7fc443d6509b80d22e 100644
--- a/webkit/fileapi/file_system_directory_database.h
+++ b/webkit/fileapi/file_system_directory_database.h
@@ -87,7 +87,12 @@ class FileSystemDirectoryDatabase {
   static bool DestroyDatabase(const FilePath& path);
 
  private:
-  bool Init();
+  enum RecoveryOption {
+    DELETE_ON_CORRUPTION,
+    FAIL_ON_CORRUPTION,
+  };
+
+  bool Init(RecoveryOption recovery_option);
   bool StoreDefaultValues();
   bool GetLastFileId(FileId* file_id);
   bool VerifyIsDirectory(FileId file_id);
@@ -97,7 +102,7 @@ class FileSystemDirectoryDatabase {
   void HandleError(const tracked_objects::Location& from_here,
                    leveldb::Status status);
 
-  std::string path_;
+  FilePath sandbox_directory_;
   scoped_ptr<leveldb::DB> db_;
 };