tree 1a8d1f47f00369b0dfb910757cc23c0dcf87366a
parent 67c0ae4250571fee50ede63f8f2501e98dff2fae
author Natalie Weizenbaum <nweiz@google.com> 1454370984 -0800
committer Natalie Weizenbaum <nweiz@google.com> 1454370984 -0800

Add support for stream- and sink-specific changes.

These are especially useful when doing stream-specific transformations
like error handling.

R=rnystrom@google.com

Review URL: https://codereview.chromium.org//1657943002 .