Version: 52.0.2743.10 18f7321a2c4403368e9e5e53f5396ede2d60b2f7-refs/branch-heads/2743@{#70} (32/64-bit)
OS: Windows (7,8,8.1,10),Linux (14.04 LTS),Mac OS X(10.10.5, 10.11.4)

What steps will reproduce the problem?
1) Launch chrome open NTP and go to devtools
2) Now dock the devtools window to bottom and select any device(Ex : Nexus 5X) and click on screen options and select 'Landscape default' and add device frame to it
3) Now resize the devtools window upwards to emulated view and click on more options button and select 'Hide device frame' option and observe

Actual : Emulated page view overlaps on devtools status bar options after clicking on hide device frame option
Expected : Emulated page view should not overlap on devtools status bar options after clicking on hide device frame option

This is a non regression issue seen from 'M-52' series.(Build : 52.0.2735.0) 

Note : This is a newly added feature 'Device frame' from Build : 52.0.2735.0
 

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