Convert TransformPoint calls to Transform calls

This Cl converts remaining calls to TransformPoint to use Transform instead.

Change-Id: I7a2c000492da5dda3975b4449812f281816fdab6
Reviewed-on: https://pdfium-review.googlesource.com/2822
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
diff --git a/fpdfsdk/formfiller/cffl_formfiller.cpp b/fpdfsdk/formfiller/cffl_formfiller.cpp
index 44df8dd..da6f920 100644
--- a/fpdfsdk/formfiller/cffl_formfiller.cpp
+++ b/fpdfsdk/formfiller/cffl_formfiller.cpp
@@ -483,18 +483,11 @@
 CFX_PointF CFFL_FormFiller::FFLtoPWL(const CFX_PointF& point) {
   CFX_Matrix mt;
   mt.SetReverse(GetCurMatrix());
-
-  CFX_PointF pt = point;
-  mt.TransformPoint(pt.x, pt.y);
-  return pt;
+  return mt.Transform(point);
 }
 
 CFX_PointF CFFL_FormFiller::PWLtoFFL(const CFX_PointF& point) {
-  CFX_Matrix mt = GetCurMatrix();
-
-  CFX_PointF pt = point;
-  mt.TransformPoint(pt.x, pt.y);
-  return pt;
+  return GetCurMatrix().Transform(point);
 }
 
 CFX_PointF CFFL_FormFiller::WndtoPWL(CPDFSDK_PageView* pPageView,