Make CPDF_Dictionary methods take CFX_ByteString arguments

core/fpdfdoc/doc_annot.cpp

Index: core/fpdfdoc/doc_annot.cpp
diff --git a/core/fpdfdoc/doc_annot.cpp b/core/fpdfdoc/doc_annot.cpp
index 3b90b0b4b57a0b9ffbdad5940bdff3bcbb2bab58..42d4a665fe9b1b9bd8c976f0ec1513fa227b0c20 100644
--- a/core/fpdfdoc/doc_annot.cpp
+++ b/core/fpdfdoc/doc_annot.cpp
@@ -183,12 +183,12 @@ CPDF_Stream* FPDFDOC_GetAnnotAP(CPDF_Dictionary* pAnnotDict,
         CPDF_Dictionary* pDict = pAnnotDict->GetDictBy("Parent");
         value = pDict ? pDict->GetStringBy("V") : CFX_ByteString();
       }
-      if (value.IsEmpty() || !pDict->KeyExist(value.AsStringC()))
+      if (value.IsEmpty() || !pDict->KeyExist(value))
         as = "Off";
       else
         as = value;
     }
-    return pDict->GetStreamBy(as.AsStringC());
+    return pDict->GetStreamBy(as);
   }
   return nullptr;
 }