John Firebaugh d2abb1b6d5 [core] Change GeoJSONSource::getURL() to return an optional<std::string> ...

GeoJSON sources may have inline GeoJSON rather than a URL; returning an optional type ensures that consumers handle this case.

2016-08-26 10:30:55 -07:00

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mbgl

[core] Change GeoJSONSource::getURL() to return an optional<std::string>

2016-08-26 10:30:55 -07:00