Perserve order for siteUtils.getFolders
Perserve order for siteUtils.getFolders

fix #7170

Auditors: @bbondy

Test Plan:
1. Create folder A, B, C
2. Move folder C between A and B as order A, C, B
3. Bookmark a site and choose parent folder from dialog
4. The select drop down list order should be A, C, B

luixxiul/browser-laptop,luixxiul/browser-laptop,timborden/browser-laptop,diasdavid/browser-laptop,diasdavid/browser-laptop,diasdavid/browser-laptop,timborden/browser-laptop,luixxiul/browser-laptop,timborden/browser-laptop,luixxiul/browser-laptop,timborden/browser-laptop,diasdavid/browser-laptop