Version: 54.0.2826.0 58bed46055a79ffc0dc4210601d260e3b3e75dbc-refs/heads/master@{#411209} (64-bit)
OS: Mac OS X(10.11.4,10.11.5)

What steps will reproduce the problem?
1) Launch chrome , navigate to chrome://md-settings/languages
2) Now click on 'Manage languages' link and observe all languages list

Actual : All languages list is been displayed after a long delay.
Expected : All languages list should be seen properly.

This is a regression issue broken in 'M-54' and below is the manual regression and Narrow bisect info:
Good build : 54.0.2825.0 
Bad build : 54.0.2826.0 

Narrow bisect info:
https://chromium.googlesource.com/chromium/src/+log/738eca8c2bf6f6c0646408d9b970d5da83b53ba3..ce6025b7864e137c42765f8b85e177dfcb8c330b?pretty=fuller&n=100

Suspecting : r411055 from Narrow bisect 

@erikchen : Could you please help to reassign if your change is not the cause for this change.

Note : Issue is not seen on Linux,Windows and Mac OS X(10.10.5)
 

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