Remove parameter to CJS_Field::GetFormFields().

It is always the same value. Also mark ValueIsOccur() as const.

Change-Id: Ifdfc33f8213ed272e7d36e1e4c2de1d2070fbcbd
Reviewed-on: https://pdfium-review.googlesource.com/37712
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
diff --git a/fxjs/cjs_field.h b/fxjs/cjs_field.h
index 1263f0b..12fcd2a 100644
--- a/fxjs/cjs_field.h
+++ b/fxjs/cjs_field.h
@@ -403,11 +403,10 @@
   void ParseFieldName(const std::wstring& strFieldNameParsed,
                       std::wstring& strFieldName,
                       int& iControlNo);
-  std::vector<CPDF_FormField*> GetFormFields(
-      const WideString& csFieldName) const;
+  std::vector<CPDF_FormField*> GetFormFields() const;
   CPDF_FormField* GetFirstFormField() const;
   CPDF_FormControl* GetSmartFieldControl(CPDF_FormField* pFormField);
-  bool ValueIsOccur(CPDF_FormField* pFormField, WideString csOptLabel);
+  bool ValueIsOccur(CPDF_FormField* pFormField, WideString csOptLabel) const;
 
   void AddDelay_Int(FIELD_PROP prop, int32_t n);
   void AddDelay_Bool(FIELD_PROP prop, bool b);