Copy folder recursively for syncfsToLocalfs export.

chrome/browser/extensions/api/developer_private/developer_private_api.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 CHROME_BROWSER_EXTENSIONS_API_DEVELOPER_PRIVATE_DEVELOPER_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_DEVELOPER_PRIVATE_DEVELOPER_PRIVATE_API_H_
 
 #include "base/platform_file.h"
 #include "chrome/browser/extensions/api/developer_private/entry_picker.h"
 #include "chrome/browser/extensions/api/file_system/file_system_api.h"
@@ skipping 333 matching lines @@
    DeveloperPrivateExportSyncfsFolderToLocalfsFunction();
 
   protected:
    virtual ~DeveloperPrivateExportSyncfsFolderToLocalfsFunction();
 
    // ExtensionFunction
    virtual bool RunImpl() OVERRIDE;
 
    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,
        const base::PlatformFileInfo& file_info,
        const base::FilePath& platform_path,
        const scoped_refptr<webkit_blob::ShareableFileReference>& file_ref);
 
    void CopyFile(const base::FilePath& src_path,
                  const base::FilePath& dest_path);
 
@@ skipping 22 matching lines @@
 
    void GetUnpackedExtension(const base::FilePath& path,
                              const ExtensionSet* extensions);
 };
 
 }  // namespace api
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_DEVELOPER_PRIVATE_DEVELOPER_PRIVATE_API_H_