Fix all the code which has duplicate variable declarations

xfa/fgas/layout/fgas_textbreak.cpp

 // Copyright 2014 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/fgas/layout/fgas_textbreak.h"
 
 #include <algorithm>
 
@@ skipping 1421 matching lines @@
           rtBBox.Reset();
           if (pFont->GetCharBBox(wForm, rtBBox, FALSE)) {
             pCharPos->m_OriginY =
                 fYBase + fFontSize -
                 fFontSize * (FX_FLOAT)rtBBox.height / (FX_FLOAT)iMaxHeight;
           }
           if (wForm == wch && wLast != 0xFEFF) {
             uint32_t dwLastProps = FX_GetUnicodeProperties(wLast);
             if ((dwLastProps & FX_CHARTYPEBITSMASK) ==
                 FX_CHARTYPE_Combination) {
-              CFX_Rect rtBBox;
-              rtBBox.Reset();
-              if (pFont->GetCharBBox(wLast, rtBBox, FALSE)) {
-                pCharPos->m_OriginY -= fFontSize * rtBBox.height / iMaxHeight;
+              CFX_Rect rtBox;
+              rtBox.Reset();
+              if (pFont->GetCharBBox(wLast, rtBox, FALSE)) {
+                pCharPos->m_OriginY -= fFontSize * rtBox.height / iMaxHeight;
               }
             }
           }
         }
         CFX_PointF ptOffset;
         FX_BOOL bAdjusted = FALSE;
         if (pAdjustPos) {
           bAdjusted = pAdjustPos(wForm, bCharCode, pFont, fFontSize,
                                  bVerticalChar, ptOffset);
         }
@@ skipping 196 matching lines @@
         rtBBoxF.height = fHeight;
         rtBBoxF.top = std::max(rtBBoxF.top, 0.0f);
       }
       rtArray.SetAt(i, rtBBoxF);
       continue;
     }
     rtArray.SetAt(i, rect);
   }
   return iLength;
 }