Banish CFX_ByteStringArray and CFX_WideStringArray to the XFA side.

fpdfsdk/src/pdfwindow/PWL_Edit.cpp

Index: fpdfsdk/src/pdfwindow/PWL_Edit.cpp
diff --git a/fpdfsdk/src/pdfwindow/PWL_Edit.cpp b/fpdfsdk/src/pdfwindow/PWL_Edit.cpp
index 057cb4191ef13dcd5360843975589f6107c7b716..4b3886a11d36571c2a4a37f4cbf4861d4419d941 100644
--- a/fpdfsdk/src/pdfwindow/PWL_Edit.cpp
+++ b/fpdfsdk/src/pdfwindow/PWL_Edit.cpp
@@ -15,6 +15,7 @@
 #include "fpdfsdk/include/pdfwindow/PWL_Utils.h"
 #include "fpdfsdk/include/pdfwindow/PWL_Wnd.h"
 #include "public/fpdf_fwlevent.h"
+#include "third_party/base/stl_util.h"
 
 CPWL_Edit::CPWL_Edit()
     : m_pFillerNotify(NULL), m_pSpellCheck(NULL), m_bFocus(FALSE) {
@@ -519,24 +520,21 @@ FX_BOOL CPWL_Edit::OnRButtonUp(const CPDF_Point& point, FX_DWORD nFlag) {
   if (!hPopup)
     return FALSE;
 
-  CFX_ByteStringArray sSuggestWords;
+  std::vector<CFX_ByteString> sSuggestWords;
   CPDF_Point ptPopup = point;
 
   if (!IsReadOnly()) {
     if (HasFlag(PES_SPELLCHECK) && !swLatin.IsEmpty()) {
       if (m_pSpellCheck) {
         CFX_ByteString sLatin = CFX_ByteString::FromUnicode(swLatin);
-
         if (!m_pSpellCheck->CheckWord(sLatin)) {
           m_pSpellCheck->SuggestWords(sLatin, sSuggestWords);
 
-          int32_t nSuggest = sSuggestWords.GetSize();
-
+          int32_t nSuggest = pdfium::CollectionSize<int32_t>(sSuggestWords);
           for (int32_t nWord = 0; nWord < nSuggest; nWord++) {
             pSH->AppendMenuItem(hPopup, WM_PWLEDIT_SUGGEST + nWord,
                                 sSuggestWords[nWord].UTF8Decode());
           }
-
           if (nSuggest > 0)
             pSH->AppendMenuItem(hPopup, 0, L"");