am ef50c458: Merge "Add slideshow page." into gingerbread

Merge commit 'ef50c458c9f9e970e51e3363a46015b69ba2aa6d' into gingerbread-plus-aosp

* commit 'ef50c458c9f9e970e51e3363a46015b69ba2aa6d':
  Add slideshow page.