Cleanup CFX_Graphics.

This Cl removes unused methods, removes unused return values, removes unused
hatch data.

Change-Id: Id76240170a3bd1c3ef156fbda25a6ac96462cbda
Reviewed-on: https://pdfium-review.googlesource.com/2827
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
diff --git a/fpdfsdk/cpdfsdk_xfawidgethandler.cpp b/fpdfsdk/cpdfsdk_xfawidgethandler.cpp
index 41c21e0..653eb8a 100644
--- a/fpdfsdk/cpdfsdk_xfawidgethandler.cpp
+++ b/fpdfsdk/cpdfsdk_xfawidgethandler.cpp
@@ -53,8 +53,7 @@
   ASSERT(pPageView);
   ASSERT(pAnnot);
 
-  CFX_Graphics gs;
-  gs.Create(pDevice);
+  CFX_Graphics gs(pDevice);
 
   CFX_Matrix mt = *pUser2Device;
   bool bIsHighlight = false;