Properly ref-count CFGAS_GEFont with CFX_RetainPtr.

xfa/fde/cfde_txtedttextset.cpp

 // Copyright 2016 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "xfa/fde/cfde_txtedttextset.h"
 
 #include "xfa/fde/cfde_txtedtengine.h"
 #include "xfa/fde/cfde_txtedtpage.h"
+#include "xfa/fgas/font/cfgas_gefont.h"
 
 CFDE_TxtEdtTextSet::CFDE_TxtEdtTextSet(CFDE_TxtEdtPage* pPage)
     : m_pPage(pPage) {}
 
 CFDE_TxtEdtTextSet::~CFDE_TxtEdtTextSet() {}
 
 FDE_VISUALOBJTYPE CFDE_TxtEdtTextSet::GetType() {
   return FDE_VISUALOBJ_Text;
 }
 
 void CFDE_TxtEdtTextSet::GetRect(FDE_TEXTEDITPIECE* pPiece, CFX_RectF& rt) {
   rt = pPiece->rtPiece;
 }
 
 int32_t CFDE_TxtEdtTextSet::GetString(FDE_TEXTEDITPIECE* pPiece,
                                       CFX_WideString& wsText) {
   FX_WCHAR* pBuffer = wsText.GetBuffer(pPiece->nCount);
-  for (int32_t i = 0; i < pPiece->nCount; i++) {
+  for (int32_t i = 0; i < pPiece->nCount; i++)
     pBuffer[i] = m_pPage->GetChar(pPiece, i);
-  }
+
   wsText.ReleaseBuffer(pPiece->nCount);
   return pPiece->nCount;
 }
 
-CFGAS_GEFont* CFDE_TxtEdtTextSet::GetFont() {
+CFX_RetainPtr<CFGAS_GEFont> CFDE_TxtEdtTextSet::GetFont() {
   return m_pPage->GetEngine()->GetEditParams()->pFont;
 }
 
 FX_FLOAT CFDE_TxtEdtTextSet::GetFontSize() {
   return m_pPage->GetEngine()->GetEditParams()->fFontSize;
 }
 
 FX_ARGB CFDE_TxtEdtTextSet::GetFontColor() {
   return m_pPage->GetEngine()->GetEditParams()->dwFontColor;
 }
@@ skipping 48 matching lines @@
   tr.iLength = nLength;
   tr.pFont = pTextParams->pFont;
   tr.fFontSize = pTextParams->fFontSize;
   tr.dwStyles = dwLayoutStyle;
   tr.iCharRotation = pTextParams->nCharRotation;
   tr.dwCharStyles = pPiece->dwCharStyles;
   tr.pRect = &(pPiece->rtPiece);
   tr.wLineBreakChar = pTextParams->wLineBreakChar;
   return pEngine->GetTextBreak()->GetCharRects(&tr, rtArray, bBBox);
 }