UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36

Steps to reproduce the problem:
1. Add "Pinyin - Simplified" input source on mac (System Preferences --> Keyboard --> Input Sources, press + button then select "Chinese, Simplified" from left and "Pinyin - Simplified" from right). Check "Show input menu in menu bar" for convenient.
2. Open a web page with a textarea, eg https://en.wikipedia.org/w/index.php?title=Wikipedia:Sandbox&action=edit
3. Fill the textarea with a lot of text. You can copy and paste the content below for 100 times to create such staff.
> Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
4. Switch to "Pinyin - Simplified" via input menu and input any character(eg "a") in this textarea. 

What is the expected behavior?
There should be an IME candidate table shown.

What went wrong?
The whole Chrome crashes.

Crashed report ID: 73b70615-70b7-4b0d-8b7b-a8a73e33048a

How much crashed? Whole browser

Is it a problem with a plugin? No 

Did this work before? N/A 

Chrome version: 59.0.3071.115  Channel: stable
OS Version: OS X 10.12.5
Flash Version: Shockwave Flash 26.0 r0