am ddc026b1: Merge "Explicitly enable backup by default in SDK builds" into froyo

Merge commit 'ddc026b1d5633348d97d78477ff1c7c950c3f3a8' into gingerbread

* commit 'ddc026b1d5633348d97d78477ff1c7c950c3f3a8':
  Explicitly enable backup by default in SDK builds