Convert CPVT_Color to CFX_Color

This CL converts the use of CPVT_Color to CFX_Color and removes the
CPVT_Color class.

Change-Id: I86a2d06524cd8f0fbce2335f0185426cc41dbe84
Reviewed-on: https://pdfium-review.googlesource.com/16030
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
diff --git a/fpdfsdk/formfiller/cffl_formfiller.cpp b/fpdfsdk/formfiller/cffl_formfiller.cpp
index 8f48c02..f86cb68 100644
--- a/fpdfsdk/formfiller/cffl_formfiller.cpp
+++ b/fpdfsdk/formfiller/cffl_formfiller.cpp
@@ -301,7 +301,7 @@
   if (m_pWidget->GetBorderColor(color))
     cp.sBorderColor = CFX_Color(color);
 
-  cp.sTextColor = CFX_Color(COLORTYPE_GRAY, 0);
+  cp.sTextColor = CFX_Color(CFX_Color::kGray, 0);
 
   if (m_pWidget->GetTextColor(color))
     cp.sTextColor = CFX_Color(color);