Make CPDF_Dictionary methods take CFX_ByteString arguments

core/fpdfdoc/doc_formfield.cpp

Index: core/fpdfdoc/doc_formfield.cpp
diff --git a/core/fpdfdoc/doc_formfield.cpp b/core/fpdfdoc/doc_formfield.cpp
index 7f0ff8716b054a9b07bf3749f550633f5cd4d767..d9333eef90d67999b20979515d45ebd333fd2862 100644
--- a/core/fpdfdoc/doc_formfield.cpp
+++ b/core/fpdfdoc/doc_formfield.cpp
@@ -1065,11 +1065,11 @@ void CPDF_FormField::LoadDA() {
   CFX_ByteString font_name = syntax.GetWord();
   CPDF_Dictionary* pFontDict = NULL;
   if (m_pForm->m_pFormDict && m_pForm->m_pFormDict->GetDictBy("DR") &&
-      m_pForm->m_pFormDict->GetDictBy("DR")->GetDictBy("Font"))
+      m_pForm->m_pFormDict->GetDictBy("DR")->GetDictBy("Font")) {
     pFontDict = m_pForm->m_pFormDict->GetDictBy("DR")
                     ->GetDictBy("Font")
-                    ->GetDictBy(font_name.AsStringC());
-
+                    ->GetDictBy(font_name);
+  }
   if (!pFontDict) {
     return;
   }