am 231a0005: Merge "Avoid allocating buffer every time getThumbnail is called." into gingerbread

Merge commit '231a0005654d23284ab58a2d9ea892b995988c34' into gingerbread-plus-aosp

* commit '231a0005654d23284ab58a2d9ea892b995988c34':
  Avoid allocating buffer every time getThumbnail is called.