And change nsGeoPosition to store DOMTimeStamp instead of long long because it is a more descriptive type. DOMTimeStamp is a typedef for uint64_t, so we're not losing any precision using DOMTimeStamp instead of long long.
MozReview-Commit-ID: hjXnw959yC
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extra : rebase_source : 7061953cc62d116487ca2fa75d89f65cf725b573
extra : source : 014089341e5443fe0b42c98141c846bfa8ca6728
nsGeoPositionCoords will convert NaNs returned from the location providers to null properties of the JavaScript Coordinates object.
MozReview-Commit-ID: Cmuf2aO0ClD
--HG--
extra : rebase_source : cbccead609ff53a3e5f1bcf7698eba7382220ce5
extra : source : b4ced6e2bab2d17cf642f5850bda5998f635fccb