nsGeoPositionCoords will convert NaNs returned from the location providers to null properties of the JavaScript Coordinates object.
MozReview-Commit-ID: Cmuf2aO0ClD
The Mozilla Location Service is the fallback for gpsd. If no location
information is received from GSP within a few seconds, MLS provides a
position. It will be updated once GPS is ready. If GPS fails, MLS will
take over again until GPS has been restored.
Gpsd is the GPS daemon on Linux. It implements support for a wide range
of GPS receivers. This patch adds support for gpsd to the Geolocation
module.
The build system can now test for libgps, which provides the public
interface to gpsd's functionality. If found, |GpsdLocationProvider|
is added to the build.
MozReview-Commit-ID: 1kBgFdEZePI
