Replace CFDE_TxtEdtPage FX_POSITION usage with uint32_tchromium/3042

Change-Id: I8cd68aaeb3c1f7ba92f32bc4846bf2e7d02111e4
Reviewed-on: https://pdfium-review.googlesource.com/3033
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Nicolás Peña <npm@chromium.org>

1 files changed, 11 insertions, 10 deletions

diff --git a/xfa/fde/cfde_txtedtpage.cpp b/xfa/fde/cfde_txtedtpage.cpp
index 4bf3e9fb5e..c3d21430bd 100644
--- a/xfa/fde/cfde_txtedtpage.cpp
+++ b/xfa/fde/cfde_txtedtpage.cpp
@@ -412,24 +412,25 @@ const CFX_RectF& CFDE_TxtEdtPage::GetContentsBox() {
   return m_rtPageContents;
 }
 
-FX_POSITION CFDE_TxtEdtPage::GetFirstPosition() {
-  if (m_Pieces.empty())
-    return nullptr;
-  return (FX_POSITION)1;
+size_t CFDE_TxtEdtPage::GetFirstPosition() {
+  return m_Pieces.empty() ? 0 : 1;
 }
 
-FDE_TEXTEDITPIECE* CFDE_TxtEdtPage::GetNext(FX_POSITION& pos,
+FDE_TEXTEDITPIECE* CFDE_TxtEdtPage::GetNext(size_t* pos,
                                             IFDE_VisualSet*& pVisualSet) {
+  ASSERT(pos);
+
   if (!m_pTextSet) {
-    pos = nullptr;
+    *pos = 0;
     return nullptr;
   }
-  int32_t nPos = (int32_t)(uintptr_t)pos;
+
+  size_t nPos = *pos;
   pVisualSet = m_pTextSet.get();
-  if (nPos + 1 > pdfium::CollectionSize<int32_t>(m_Pieces))
-    pos = nullptr;
+  if (nPos + 1 > m_Pieces.size())
+    *pos = 0;
   else
-    pos = (FX_POSITION)(uintptr_t)(nPos + 1);
+    *pos = nPos + 1;
 
   return &m_Pieces[nPos - 1];
 }