New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/drape_frontend/requested_tiles.cpp

@@ -0,0 +1,44 @@
+#include "drape_frontend/requested_tiles.hpp"
+
+namespace df
+{
+void RequestedTiles::Set(ScreenBase const & screen, bool have3dBuildings, bool forceRequest,
+                         bool forceUserMarksRequest, TTilesCollection && tiles)
+{
+  std::lock_guard<std::mutex> lock(m_mutex);
+  m_tiles = std::move(tiles);
+  m_screen = screen;
+  m_have3dBuildings = have3dBuildings;
+  m_forceRequest = forceRequest;
+  m_forceUserMarksRequest = forceUserMarksRequest;
+}
+
+TTilesCollection RequestedTiles::GetTiles()
+{
+  TTilesCollection tiles;
+  {
+    std::lock_guard<std::mutex> lock(m_mutex);
+    m_tiles.swap(tiles);
+  }
+  return tiles;
+}
+
+void RequestedTiles::GetParams(ScreenBase & screen, bool & have3dBuildings,
+                               bool & forceRequest, bool & forceUserMarksRequest)
+{
+  std::lock_guard<std::mutex> lock(m_mutex);
+  screen = m_screen;
+  have3dBuildings = m_have3dBuildings;
+  forceRequest = m_forceRequest;
+  forceUserMarksRequest = m_forceUserMarksRequest;
+}
+
+bool RequestedTiles::CheckTileKey(TileKey const & tileKey) const
+{
+  std::lock_guard<std::mutex> lock(m_mutex);
+  if (m_tiles.empty())
+    return true;
+
+  return m_tiles.find(tileKey) != m_tiles.end();
+}
+}  // namespace df