tree 1432d4ef731485648a77c776e92073171be6b8c2
parent 77c1761f5c3cb498ab55799f9ad02ad6297a3960
author ZhouyihaiDing <ddyihai@google.com> 1524597254 -0700
committer ZhouyihaiDing <ddyihai@google.com> 1524706566 -0700

PHP: remove channel observation and clean method used for tests