325     const char* fileExtension() const override { return ""; }  in fileExtension()  function
348     const char* fileExtension() const override { return "png"; }  in fileExtension()  function
381     const char* fileExtension() const override {  in fileExtension()  function
404     const char* fileExtension() const override {  in fileExtension()  function
419     const char* fileExtension() const override { return "pdf"; }  in fileExtension()  function
430     const char* fileExtension() const override { return "xps"; }  in fileExtension()  function
439     const char* fileExtension() const override { return "png"; }  in fileExtension()  function
458     const char* fileExtension() const override { return "skp"; }  in fileExtension()  function
465     const char* fileExtension() const override { return "json"; }  in fileExtension()  function
474     const char* fileExtension() const override { return "svg"; }  in fileExtension()  function
487     const char* fileExtension() const override { return fSink->fileExtension(); }  in fileExtension()  function