Copy folder recursively for syncfsToLocalfs export.

chrome/browser/extensions/api/developer_private/developer_private_api.h

Index: chrome/browser/extensions/api/developer_private/developer_private_api.h
diff --git a/chrome/browser/extensions/api/developer_private/developer_private_api.h b/chrome/browser/extensions/api/developer_private/developer_private_api.h
index 01361b9cf45a0b66ebdece9c462335b2c5caf607..22be9e85065321eaf60eea7f9cf52120a66a66e3 100644
--- a/chrome/browser/extensions/api/developer_private/developer_private_api.h
+++ b/chrome/browser/extensions/api/developer_private/developer_private_api.h
@@ -351,16 +351,16 @@ class DeveloperPrivateExportSyncfsFolderToLocalfsFunction
 
    void ClearPrexistingDirectoryContent(const base::FilePath& project_path);
 
-   void ReadSyncFileSystemDirectory(const base::FilePath& project_path);
+   void ReadSyncFileSystemDirectory(const base::FilePath& project_path,
+                                    const base::FilePath& current_path);

[miket_OOO, 2013/06/12 19:39:24]

"current_path" has special meaning: it's the current working directory. For that
reason it's surprising to see a parameter named current_path (anyone can ask
what the current path is, so why would you send it around?). I haven't seen the
.cc yet, so I can't say for sure, but I bet that it's something more like
"destination_path." Recommend changing for clarity.

 
    void ReadSyncFileSystemDirectoryCb(
        const base::FilePath& project_path,
+       const base::FilePath& current_path,
        base::PlatformFileError result,
        const fileapi::FileSystemOperation::FileEntryList& file_list,
        bool has_more);
 
-   void CreateFolderAndSendResponse(const base::FilePath& project_path);
-
    void SnapshotFileCallback(
        const base::FilePath& target_path,
        base::PlatformFileError result,