Segments: use TrackPoint.type.

So, far specific latitude for segment start/end (i.e., PAUSE/RESUME) was used.
#316.

src/main/java/de/dennisguse/opentracks/util/LocationUtils.java

@@ -17,6 +17,8 @@ package de.dennisguse.opentracks.util;
 
 import android.location.Location;
 
+import de.dennisguse.opentracks.content.data.TrackPoint;
+
 /**
  * Utility class for decimating tracks at a given level of precision.
  *
@@ -34,26 +36,18 @@ public class LocationUtils {
 
     /**
      * Checks if a given location is a valid (i.e. physically possible) location on Earth.
-     * Note: The special separator locations (which have latitude = 100) will not qualify as valid.
      * Neither will locations with lat=0 and lng=0 as these are most likely "bad" measurements which often cause trouble.
      *
      * @param location the location to test
      * @return true if the location is a valid location.
      */
-    //TODO Move to TrackPoint
-    @Deprecated //See #316
     public static boolean isValidLocation(Location location) {
         return location != null
                 && Math.abs(location.getLatitude()) <= 90
                 && Math.abs(location.getLongitude()) <= 180;
     }
 
-    /**
-     * Returns true if a location is old.
-     *
-     * @param location the location
-     */
-    public static boolean isLocationOld(Location location) {
-        return !LocationUtils.isValidLocation(location) || (System.currentTimeMillis() - location.getTime() > MAX_LOCATION_AGE_MS);
+    public static boolean isTrackPointOld(TrackPoint trackPoint) {
+        return System.currentTimeMillis() - trackPoint.getTime() > MAX_LOCATION_AGE_MS;
     }
 }