Moved a BufferedOutputStream onto the heap to reduce stack usage.
Moved a BufferedOutputStream onto the heap to reduce stack usage.

Bug: 15278350
Change-Id: I6aa7cf3979453e555686610e90520b762b812f8c

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst