Migrates legacy packaged app data when it's upgraded to a platform app

storage/browser/fileapi/obfuscated_file_util.h

Index: storage/browser/fileapi/obfuscated_file_util.h
diff --git a/storage/browser/fileapi/obfuscated_file_util.h b/storage/browser/fileapi/obfuscated_file_util.h
index 090e55e3b49f8f8df24da1fcdd3fea5fae223bcf..fa3251a2464cd3f6f362e44e59205fc2136df2df 100644
--- a/storage/browser/fileapi/obfuscated_file_util.h
+++ b/storage/browser/fileapi/obfuscated_file_util.h
@@ -190,6 +190,10 @@ class STORAGE_EXPORT_PRIVATE ObfuscatedFileUtil
       const GURL& origin,
       const std::string& type_string);
 
+  // Frees resources used by an origin's filesystem.
+  void CloseFileSystemForOriginAndType(const GURL& origin,
+                                       const std::string& type_string);
+
   // This method and all methods of its returned class must be called only on
   // the FILE thread.  The caller is responsible for deleting the returned
   // object.