Change CFWL_Widget::GetMatrix to return the matrix

xfa/fwl/cfwl_widget.h

Index: xfa/fwl/cfwl_widget.h
diff --git a/xfa/fwl/cfwl_widget.h b/xfa/fwl/cfwl_widget.h
index 5046aab888327b309765117d6cf77bb8b9741ce3..e2fce0e1acaa617f2be48919e1ba2a4fb1d5ab77 100644
--- a/xfa/fwl/cfwl_widget.h
+++ b/xfa/fwl/cfwl_widget.h
@@ -91,7 +91,7 @@ class CFWL_Widget : public IFWL_WidgetDelegate {
   }
 
   void TransformTo(CFWL_Widget* pWidget, FX_FLOAT& fx, FX_FLOAT& fy);
-  void GetMatrix(CFX_Matrix& matrix, bool bGlobal);
+  CFX_Matrix GetMatrix();
   IFWL_ThemeProvider* GetThemeProvider() const;
 
   void SetDelegate(IFWL_WidgetDelegate* delegate) { m_pDelegate = delegate; }