refactor: media controller playback routing and ownership

src/slic3r/GUI/IMediaController.hpp

@@ -3,10 +3,6 @@
 #include <wx/mediactrl.h>
 #include <wx/uri.h>
 
-#include <memory>
-
-#include <slic3r/Utils/IPrinterAgent.hpp>
-
 namespace Slic3r { namespace GUI {
 
 class IMediaController
@@ -16,13 +12,6 @@ public:
 
     virtual void Load(wxURI url) = 0;
 
-    // The default keeps existing media controllers unaware of camera-specific modes.
-    virtual void Load(wxURI url, CameraStreamMode mode)
-    {
-        (void) mode;
-        Load(url);
-    }
-
     virtual void Play() = 0;
 
     virtual void Stop() = 0;
@@ -32,15 +21,6 @@ public:
     virtual int GetLastError() const { return {}; };
 
     virtual wxSize GetVideoSize() const { return {}; };
-
-    virtual void StartSession(std::unique_ptr<ICameraSignalingChannel> channel)
-    {
-        (void) channel;
-    }
-
-    virtual void StopSession() {}
-
-private:
 };
 
 }} // namespace Slic3r::GUI