UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.104 Safari/537.36

Steps to reproduce the problem:
1. 在mac系统上切换到系统自带的输入法
2. 打开某些有输入框的网站，比如phabricator
3. 选择comment或者任意别的输入框，多尝试几次，就会卡死然后崩溃

What is the expected behavior?
正常运行

What went wrong?
先卡死，然后马上崩溃，macOS弹出崩溃提醒

Crashed report ID: no

How much crashed? Whole browser

Is it a problem with a plugin? No 

Did this work before? No 

Chrome version: 59.0.3071.104  Channel: stable
OS Version: OS X 10.12.5
Flash Version: