Rename CPDF_{Array,Dictionary}::GetCount() to size().

Make them compatible with pdfium::CollectionSize().

Change-Id: Ibef3b182e35a7eca7c656cf590462782de0cc157
Reviewed-on: https://pdfium-review.googlesource.com/c/43937
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/fpdfsdk/fpdf_doc.cpp b/fpdfsdk/fpdf_doc.cpp
index 28c670c..0a2f589 100644
--- a/fpdfsdk/fpdf_doc.cpp
+++ b/fpdfsdk/fpdf_doc.cpp
@@ -340,7 +340,7 @@
   CPDF_Array* pAnnots = pPage->GetDict()->GetArrayFor("Annots");
   if (!pAnnots)
     return false;
-  for (size_t i = *start_pos; i < pAnnots->GetCount(); i++) {
+  for (size_t i = *start_pos; i < pAnnots->size(); i++) {
     CPDF_Dictionary* pDict = ToDictionary(pAnnots->GetDirectObjectAt(i));
     if (!pDict)
       continue;
@@ -365,7 +365,7 @@
 FPDF_EXPORT int FPDF_CALLCONV FPDFLink_CountQuadPoints(FPDF_LINK link_annot) {
   const CPDF_Array* pArray =
       GetQuadPointsArrayFromDictionary(CPDFDictionaryFromFPDFLink(link_annot));
-  return pArray ? static_cast<int>(pArray->GetCount() / 8) : 0;
+  return pArray ? static_cast<int>(pArray->size() / 8) : 0;
 }
 
 FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV