[Merge] lp:~abreu-alexandre/webbrowser-app/front-camera-as-default-capture into lp:webbrowser-app

[Olivier Tilloy]

Review: Approve code

Code changes look ok. I haven’t tested the actual functionality on a touch device though, this should be carefully tested from a silo.
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https://code.launchpad.net/~abreu-alexandre/webbrowser-app/front-camera-as-default-capture/+merge/291527
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