tree ea292f0c45986616e4f8dee7e3964aa6de708903
parent 4556f5e95043854a2fc61d2610e7cfb8c830dfd8
author Natalie Weizenbaum <nweiz@google.com> 1455138535 -0800
committer Natalie Weizenbaum <nweiz@google.com> 1455138535 -0800

Make IsolateChannel's controllers synchronous.

This is slightly more efficient, and also make it easier for other
packages to work around dart-lang/sdk#25745.

R=tjblasi@google.com

Review URL: https://codereview.chromium.org//1690473002 .