Give a variable in FPDF_CountNamedDests() a better name.

Make it more obvious it is for looking up old style named destinations.

Change-Id: I75ddc4983ba3f3e680d4d5d13ef868d9c7731e21
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/69754
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
diff --git a/fpdfsdk/fpdf_view.cpp b/fpdfsdk/fpdf_view.cpp
index 61df7a6..4ae33f6 100644
--- a/fpdfsdk/fpdf_view.cpp
+++ b/fpdfsdk/fpdf_view.cpp
@@ -1012,9 +1012,9 @@
 
   auto name_tree = CPDF_NameTree::Create(pDoc, "Dests");
   FX_SAFE_UINT32 count = name_tree ? name_tree->GetCount() : 0;
-  const CPDF_Dictionary* pDest = pRoot->GetDictFor("Dests");
-  if (pDest)
-    count += pDest->size();
+  const CPDF_Dictionary* pOldStyleDests = pRoot->GetDictFor("Dests");
+  if (pOldStyleDests)
+    count += pOldStyleDests->size();
   return count.ValueOrDefault(0);
 }