[Merge] lp:~abreu-alexandre/webbrowser-app/container-handle-camera-access into lp:webbrowser-app

[Olivier Tilloy]

Review: Needs Fixing

I’m getting 15 failures when running the webapp_container test suite on my desktop. Those are regressions, all tests pass with trunk.
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https://code.launchpad.net/~abreu-alexandre/webbrowser-app/container-handle-camera-access/+merge/288571
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