Fix all the code which has duplicate variable declarations

xfa/fxfa/app/xfa_ffwidget.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/fxfa/include/xfa_ffwidget.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 1327 matching lines @@
     int32_t iHand = box.GetHand();
     if (iHand == XFA_ATTRIBUTEENUM_Left) {
       rtWidget.Inflate(fHalf, fHalf);
     } else if (iHand == XFA_ATTRIBUTEENUM_Right) {
       rtWidget.Deflate(fHalf, fHalf);
     }
     XFA_BOX_GetPath_Arc(box, rtWidget, fillPath, dwFlags);
     return;
   }
   FX_BOOL bSameStyles = TRUE;
-  int32_t i;
   CXFA_Stroke stroke1 = strokes[0];
-  for (i = 1; i < 8; i++) {
+  for (int32_t i = 1; i < 8; i++) {
     CXFA_Stroke stroke2 = strokes[i];
     if (!stroke1.SameStyles(stroke2)) {
       bSameStyles = FALSE;
       break;
     }
     stroke1 = stroke2;
   }
   if (bSameStyles) {
     stroke1 = strokes[0];
-    for (i = 2; i < 8; i += 2) {
+    for (int32_t i = 2; i < 8; i += 2) {
       CXFA_Stroke stroke2 = strokes[i];
       if (!stroke1.SameStyles(stroke2, XFA_STROKE_SAMESTYLE_NoPresence |
                                            XFA_STROKE_SAMESTYLE_Corner)) {
         bSameStyles = FALSE;
         break;
       }
       stroke1 = stroke2;
     }
     if (bSameStyles) {
       stroke1 = strokes[0];
@@ skipping 461 matching lines @@
         XFA_BOX_Stroke_3DRect_Etched(pGS, rtWidget, fThickness, pMatrix);
         break;
       case XFA_ATTRIBUTEENUM_Embossed:
         XFA_BOX_Stroke_3DRect_Embossed(pGS, rtWidget, fThickness, pMatrix);
         break;
     }
     return;
   }
   FX_BOOL bClose = FALSE;
   FX_BOOL bSameStyles = TRUE;
-  int32_t i;
   CXFA_Stroke stroke1 = strokes[0];
-  for (i = 1; i < 8; i++) {
+  for (int32_t i = 1; i < 8; i++) {
     CXFA_Stroke stroke2 = strokes[i];
     if (!stroke1.SameStyles(stroke2)) {
       bSameStyles = FALSE;
       break;
     }
     stroke1 = stroke2;
   }
   if (bSameStyles) {
     stroke1 = strokes[0];
     bClose = TRUE;
-    for (i = 2; i < 8; i += 2) {
+    for (int32_t i = 2; i < 8; i += 2) {
       CXFA_Stroke stroke2 = strokes[i];
       if (!stroke1.SameStyles(stroke2, XFA_STROKE_SAMESTYLE_NoPresence |
                                            XFA_STROKE_SAMESTYLE_Corner)) {
         bSameStyles = FALSE;
         break;
       }
       stroke1 = stroke2;
     }
     if (bSameStyles) {
       stroke1 = strokes[0];
       if (stroke1.IsInverted()) {
         bSameStyles = FALSE;
       }
       if (stroke1.GetJoinType() != XFA_ATTRIBUTEENUM_Square) {
         bSameStyles = FALSE;
       }
     }
   }
   FX_BOOL bStart = TRUE;
   CFX_Path path;
   path.Create();
-  for (i = 0; i < 8; i++) {
-    CXFA_Stroke stroke1 = strokes[i];
-    if ((i % 1) == 0 && stroke1.GetRadius() < 0) {
+  for (int32_t i = 0; i < 8; i++) {
+    CXFA_Stroke stroke = strokes[i];
+    if ((i % 1) == 0 && stroke.GetRadius() < 0) {
       FX_BOOL bEmpty = path.IsEmpty();
       if (!bEmpty) {
-        XFA_BOX_StrokePath(stroke1, &path, pGS, pMatrix);
+        XFA_BOX_StrokePath(stroke, &path, pGS, pMatrix);
         path.Clear();
       }
       bStart = TRUE;
       continue;
     }
     XFA_BOX_GetPath(box, strokes, rtWidget, path, i, bStart, !bSameStyles);
     CXFA_Stroke stroke2 = strokes[(i + 1) % 8];
-    bStart = !stroke1.SameStyles(stroke2);
+    bStart = !stroke.SameStyles(stroke2);
     if (bStart) {
-      XFA_BOX_StrokePath(stroke1, &path, pGS, pMatrix);
+      XFA_BOX_StrokePath(stroke, &path, pGS, pMatrix);
       path.Clear();
     }
   }
   FX_BOOL bEmpty = path.IsEmpty();
   if (!bEmpty) {
     if (bClose) {
       path.Close();
     }
     XFA_BOX_StrokePath(strokes[7], &path, pGS, pMatrix);
   }
@@ skipping 76 matching lines @@
       iType != XFA_ELEMENT_Rectangle) {
     return;
   }
   CXFA_StrokeArray strokes;
   if (!(dwFlags & XFA_DRAWBOX_ForceRound) && iType != XFA_ELEMENT_Arc) {
     box.GetStrokes(strokes);
   }
   XFA_BOX_Fill(box, strokes, pGS, rtWidget, pMatrix, dwFlags);
   XFA_BOX_Stroke(box, strokes, pGS, rtWidget, pMatrix, dwFlags);
 }