* fix: opt into location services once device service has been started
* refactor: provide fake location provider to mock geolocation reponses
* chore: add spec for navigator.geolocation api using fake location provider
* Make it possible to disable a module for a renderer
* Put DesktopCapturer API under a build flag
The name is "enable_desktop_capturer".
Enabled by default.
* Add features.isOffscreenRenderingEnabled()
* Use .isOffscreenRenderingEnabled() to determine if OSR is available
* Add a helper closeTheWindow() function
* Skip OSR tests if they are disabled
