am 90fb15a7: Support UI visibility and restarting in download manager.

Merge commit '90fb15a7e52b1208b8d4f7518a61efb99580b5b0' into gingerbread-plus-aosp

* commit '90fb15a7e52b1208b8d4f7518a61efb99580b5b0':
  Support UI visibility and restarting in download manager.
tree: 1664382aa17eb82db6f397d535fff7bd57ac2055
  1. cmds/
  2. include/
  3. libs/
  4. opengl/
  5. services/
  6. vpn/
  7. MODULE_LICENSE_APACHE2
  8. NOTICE