Trust the compiler to do array indexing and superclass promotion.

xfa/fxbarcode/qrcode/BC_QRDetector.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
 // Original code is licensed as follows:
 /*
  * Copyright 2007 ZXing authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ skipping 73 matching lines @@
       CBC_QRAlignmentPattern* temp = FindAlignmentInRegion(
           moduleSize, estAlignmentX, estAlignmentY, (FX_FLOAT)i, e);
       if (temp) {
         alignmentPattern = temp;
         break;
       }
     }
   }
   CBC_CommonBitMatrix* bits =
       SampleGrid(m_image, topLeft.get(), topRight.get(), bottomLeft.get(),
-                 (CBC_ResultPoint*)(alignmentPattern), dimension, e);
+                 alignmentPattern, dimension, e);
   BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
 
   CFX_ArrayTemplate<CBC_ResultPoint*>* points =
       new CFX_ArrayTemplate<CBC_ResultPoint*>();
   points->Add(bottomLeft.release());
   points->Add(topLeft.release());
   points->Add(topRight.release());
   if (alignmentPattern)
     points->Add(alignmentPattern);
   return new CBC_QRDetectorResult(bits, points);
@@ skipping 164 matching lines @@
   int32_t alignmentAreaBottomY =
       std::min(m_image->GetHeight() - 1, estAlignmentY + allowance);
   CBC_QRAlignmentPatternFinder alignmentFinder(
       m_image, alignmentAreaLeftX, alignmentAreaTopY,
       alignmentAreaRightX - alignmentAreaLeftX,
       alignmentAreaBottomY - alignmentAreaTopY, overallEstModuleSize);
   CBC_QRAlignmentPattern* qap = alignmentFinder.Find(e);
   BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
   return qap;
 }