Cleanup IFWL_Widget visibility and virtual parameters

This Cl cleans up the IFWL_Widget class including:

 * Making members and methods private where possible
 * Removing virtual methods that are never overridden
 * Removing methods that do nothing
 * Removing unchecked FWL_Error return codes

Review-Url: https://codereview.chromium.org/2488953003

1 files changed, 3 insertions, 7 deletions

diff --git a/xfa/fwl/core/ifwl_formproxy.cpp b/xfa/fwl/core/ifwl_formproxy.cpp
index 8bb1091326..56194d8c15 100644
--- a/xfa/fwl/core/ifwl_formproxy.cpp
+++ b/xfa/fwl/core/ifwl_formproxy.cpp
@@ -28,14 +28,10 @@ bool IFWL_FormProxy::IsInstance(const CFX_WideStringC& wsClass) const {
   return IFWL_Form::IsInstance(wsClass);
 }
 
-FWL_Error IFWL_FormProxy::Update() {
-  return FWL_Error::Succeeded;
-}
+void IFWL_FormProxy::Update() {}
 
-FWL_Error IFWL_FormProxy::DrawWidget(CFX_Graphics* pGraphics,
-                                     const CFX_Matrix* pMatrix) {
-  return FWL_Error::Succeeded;
-}
+void IFWL_FormProxy::DrawWidget(CFX_Graphics* pGraphics,
+                                const CFX_Matrix* pMatrix) {}
 
 void IFWL_FormProxy::OnProcessMessage(CFWL_Message* pMessage) {
   m_pOuter->GetDelegate()->OnProcessMessage(pMessage);