tree d3d6025dc6d0e77f2f59670e3b2c23093be40cef
parent 5b5f8652dac5416461332c1b23dc3d5ba315b074
author Doug Zongker <dougz@android.com> 1265828543 -0800
committer Doug Zongker <dougz@android.com> 1265829053 -0800

add Base64OutputStream to android-common

Base64OutputStream is a FilterOutputStream that can encode or decode
base-64 data (with any of the flags supported by the Base64 class --
crlf, padding vs not, line wrapping vs not, etc.)

We change Base64 to have package-private decodeInternal and
encodeInternal methods that save all their state in objects and can be
called multiple times to stream data.  The existing functions for
in-memory encoding/decoding call the internal method once; the output
stream calls it multiple times.

Change-Id: Iac661d05329bc2e6b2863088efcedc974415ec44