Remove implicit conversions and some cleanup

fpdfsdk/src/fsdk_baseform.cpp

Index: fpdfsdk/src/fsdk_baseform.cpp
diff --git a/fpdfsdk/src/fsdk_baseform.cpp b/fpdfsdk/src/fsdk_baseform.cpp
index 79180324f74f48a82add9417a809e348df001f76..e4e243f9de46cf799834dc9179af53acbe2cac24 100644
--- a/fpdfsdk/src/fsdk_baseform.cpp
+++ b/fpdfsdk/src/fsdk_baseform.cpp
@@ -2354,7 +2354,7 @@ FX_BOOL CPDFSDK_InterForm::OnValidate(CPDF_FormField* pFormField,
 FX_BOOL CPDFSDK_InterForm::DoAction_Hide(const CPDF_Action& action) {
   ASSERT(action);
 
-  CPDF_ActionFields af = action.GetWidgets();
+  CPDF_ActionFields af(&action);
   std::vector<CPDF_Object*> fieldObjects = af.GetAllFields();
   std::vector<CPDF_FormField*> fields = GetFieldFromObjects(fieldObjects);
 
@@ -2391,7 +2391,7 @@ FX_BOOL CPDFSDK_InterForm::DoAction_SubmitForm(const CPDF_Action& action) {
 
   CPDF_Dictionary* pActionDict = action.GetDict();
   if (pActionDict->KeyExist("Fields")) {
-    CPDF_ActionFields af = action.GetWidgets();
+    CPDF_ActionFields af(&action);
     FX_DWORD dwFlags = action.GetFlags();
     std::vector<CPDF_Object*> fieldObjects = af.GetAllFields();
     std::vector<CPDF_FormField*> fields = GetFieldFromObjects(fieldObjects);
@@ -2564,7 +2564,7 @@ FX_BOOL CPDFSDK_InterForm::DoAction_ResetForm(const CPDF_Action& action) {
   if (!pActionDict->KeyExist("Fields"))
     return m_pInterForm->ResetForm(true);
 
-  CPDF_ActionFields af = action.GetWidgets();
+  CPDF_ActionFields af(&action);
   FX_DWORD dwFlags = action.GetFlags();
 
   std::vector<CPDF_Object*> fieldObjects = af.GetAllFields();