Bug 1121862 - Enable MLS geolocation for Firefox desktop. r=garvank sr=dougt

browser/app/profile/firefox.js

@@ -1702,7 +1702,7 @@ pref("plain_text.wrap_long_lines", true);
 pref("dom.debug.propagate_gesture_events_through_content", false);
 
 // The request URL of the GeoLocation backend.
-pref("geo.wifi.uri", "https://www.googleapis.com/geolocation/v1/geolocate?key=%GOOGLE_API_KEY%");
+pref("geo.wifi.uri", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
 
 // Necko IPC security checks only needed for app isolation for cookies/cache/etc:
 // currently irrelevant for desktop e10s

browser/metro/profile/metro.js

@@ -411,7 +411,7 @@ pref("privacy.sanitize.migrateFx3Prefs",    false);
 
 // enable geo
 pref("geo.enabled", true);
-pref("geo.wifi.uri", "https://www.googleapis.com/geolocation/v1/geolocate?key=%GOOGLE_API_KEY%");
+pref("geo.wifi.uri", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
 
 // snapped view
 pref("browser.ui.snapped.maxWidth", 600);