Chrome Version:53.0.2783.0 (Official Build) 956d75c97da94022381b07c336a4c258b04fb8bc-refs/heads/master@{#402676}-32/64 bit
OS: Windows(7,8,8.1,10), Mac(10.10.5, 10.11.4)

Steps:
1. Launch Chrome, navigate to chrome://md-settings, and click on Advanced
2. Click on 'Language', then click on iron icon and observe.

Actual: Menu list is not properly seen after clicking on iron icon of language i.e it seems transparent with no outline.

Expected: Menu list should be seen properly after clicking on iron icon of language.

Changelog url:
https://chromium.googlesource.com/chromium/src/+log/53.0.2782.0..53.0.2783.0?pretty=fuller&n=10000

Suspecting: r402639 ?

@dschuyler, please take a look.

This is non-regression issue seen from M-53 as this is a new feature introduce build no 53.0.2783.0 

Note: Issue is not seen on Linux OS.

 

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