don't scale drawable during preloading

Change-Id: I53461e4370091e304a64a82c96376a553a416297
update android src of [jellybean]

Change-Id: Ica2da3adac66e4c5d8ca41aa19d809a5f2f2322b
update android src of [jellybean]

Change-Id: I5ba268f3cc20f80cb8ac6321e867c2718d658f1d