Normally the barkmarks sync when you setup Google email... Your didnt...
Correction, just realized that a Dolphin HD browser not the stovk one, it appears there isnt a easy way to do this, maybe you can download Dolphin browser and import into it and then use Bookmarks to SD and then you can use the import option from Bookmark to SD.
This may help.... http://www.howtogeek.com/64366/how-to-sync-google-chrome-bookmarks-with-your-android-phone/