If you install the "Save to Google" extension for Chrome, you can now import your Chrome bookmarks into the Google Save site. Just open the sidebar menu from the Google Save site, click "import Chrome bookmarks" and wait a few minutes until all your bookmarks are saved online. Reload the pages and you'll see all of your Chrome bookmarks next to the pages and images you've previously saved.
Folders and subfolders are converted into tags. Let's assume that the folder "Google" has a subfolder called "Blogs". The two folders are converted into two tags: "Google" and "Google > Blogs", while the bookmarks from the "Blogs" subfolders get both tags.
For now, there's no way to sync Google Save with Chrome bookmarks and the Bookmark Manager extension doesn't integrate with Google Save, even if they're closely related.
{ Thanks, Mukil Elango. }