Tests that device emulation affects portals.
Loading portal host
Location: http://devtools.oopif-a.test:8000/inspector-protocol/resources/test-page.html
Creating portal
Portal location: http://devtools.oopif-b.test:8000/inspector-protocol/resources/test-page.html
Metrics:
width             = 800
height            = 600
orientation type  = landscape-secondary
orientation angle = 270
Portal metrics:
width             = 800
height            = 600
orientation type  = landscape-secondary
orientation angle = 270
Metrics:
width             = 500
height            = 200
orientation type  = portrait-primary
orientation angle = 0
Portal metrics:
width             = 500
height            = 200
orientation type  = portrait-primary
orientation angle = 0