tree 3974eefc93d9bbb182bf1fcee7b0079c3e1848fe
parent 7bd522e167f80565ca10f2161c9e32393dae12e0
author Nigel Tao <nigeltao@golang.org> 1425530817 +1100
committer Nigel Tao <nigeltao@golang.org> 1425948062 +0000

draw: add Transformer and Option types.

Just stub implementations for now. Actual implementations will be
follow-up changes.

Change-Id: Id21d9042a2073c2dc0f78c9977c4940f000a41df
Reviewed-on: https://go-review.googlesource.com/6805
Reviewed-by: Rob Pike <r@golang.org>