Revert "[tracks] Safe GpsTrackCollection requests during recording."

This reverts commit b7b87f5530.

libs/map/gps_track.cpp

@@ -50,20 +50,15 @@ void GpsTrack::AddPoints(vector<location::GpsInfo> const & points)
   ScheduleTask();
 }
 
-/// @note These functions are called during recording, so should be synchronized with Collection writer thread.
-/// @{
-TrackStatistics GpsTrack::GetTrackStatistics()
+TrackStatistics GpsTrack::GetTrackStatistics() const
 {
-  lock_guard<mutex> lg(m_threadGuard);
   return m_collection ? m_collection->GetTrackStatistics() : TrackStatistics();
 }
 
-ElevationInfo const & GpsTrack::GetElevationInfo()
+ElevationInfo const & GpsTrack::GetElevationInfo() const
 {
-  lock_guard<mutex> lg(m_threadGuard);
   return m_collection->UpdateAndGetElevationInfo();
 }
-/// @}
 
 void GpsTrack::Clear()
 {

libs/map/gps_track.hpp

@@ -31,8 +31,8 @@ public:
   void AddPoints(std::vector<location::GpsInfo> const & points);
 
   /// Returns track statistics
-  TrackStatistics GetTrackStatistics();
-  ElevationInfo const & GetElevationInfo();
+  TrackStatistics GetTrackStatistics() const;
+  ElevationInfo const & GetElevationInfo() const;
 
   /// Clears any previous tracking info
   /// @note Callback is called with 'toRemove' points, if some points were removed.

libs/map/gps_tracker.cpp

@@ -68,12 +68,12 @@ bool GpsTracker::IsEmpty() const
   return m_track.IsEmpty();
 }
 
-TrackStatistics GpsTracker::GetTrackStatistics()
+TrackStatistics GpsTracker::GetTrackStatistics() const
 {
   return m_track.GetTrackStatistics();
 }
 
-ElevationInfo const & GpsTracker::GetElevationInfo()
+ElevationInfo const & GpsTracker::GetElevationInfo() const
 {
   return m_track.GetElevationInfo();
 }

libs/map/gps_tracker.hpp

@@ -17,8 +17,8 @@ public:
 
   bool IsEmpty() const;
 
-  TrackStatistics GetTrackStatistics();
-  ElevationInfo const & GetElevationInfo();
+  TrackStatistics GetTrackStatistics() const;
+  ElevationInfo const & GetElevationInfo() const;
 
   using TGpsTrackDiffCallback =
       std::function<void(std::vector<std::pair<size_t, location::GpsInfo>> && toAdd,