Move xfa/fxgraphics to xfa/fgas/graphics.

Then rename classes to CFGAS_GE* so to make them visually
distinguishable from the rest of CFXA_, which ought to be
garbage collected (this lower level library knows not of GC).

Change-Id: I4171e868f9ed22a99341732e87c8038db8ad85a3
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/74991
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/xfa/fwl/cfwl_barcode.h b/xfa/fwl/cfwl_barcode.h
index 0af87fd..31aca8e 100644
--- a/xfa/fwl/cfwl_barcode.h
+++ b/xfa/fwl/cfwl_barcode.h
@@ -37,7 +37,8 @@
   // CFWL_Widget
   FWL_Type GetClassID() const override;
   void Update() override;
-  void DrawWidget(CXFA_Graphics* pGraphics, const CFX_Matrix& matrix) override;
+  void DrawWidget(CFGAS_GEGraphics* pGraphics,
+                  const CFX_Matrix& matrix) override;
   void OnProcessEvent(CFWL_Event* pEvent) override;
 
   // CFWL_Edit