Remove barcode reading code.

We never read barcodes, we only write them. Remove code related to barcode
reading.

Review-Url: https://codereview.chromium.org/2071633002

32 files changed, 31 insertions, 2987 deletions

diff --git a/xfa/fxbarcode/qrcode/BC_FinderPatternInfo.cpp b/xfa/fxbarcode/qrcode/BC_FinderPatternInfo.cpp
deleted file mode 100644
index 63b3ab790d..0000000000
--- a/xfa/fxbarcode/qrcode/BC_FinderPatternInfo.cpp
+++ /dev/null
@@ -1,46 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/BC_ResultPoint.h"
-#include "xfa/fxbarcode/qrcode/BC_FinderPatternInfo.h"
-#include "xfa/fxbarcode/qrcode/BC_QRFinderPattern.h"
-
-CBC_QRFinderPatternInfo::CBC_QRFinderPatternInfo(
-    CFX_ArrayTemplate<CBC_QRFinderPattern*>* patternCenters) {
-  m_bottomLeft = (*patternCenters)[0];
-  m_topLeft = (*patternCenters)[1];
-  m_topRight = (*patternCenters)[2];
-}
-
-CBC_QRFinderPatternInfo::~CBC_QRFinderPatternInfo() {}
-
-CBC_QRFinderPattern* CBC_QRFinderPatternInfo::GetBottomLeft() const {
-  return m_bottomLeft;
-}
-
-CBC_QRFinderPattern* CBC_QRFinderPatternInfo::GetTopLeft() const {
-  return m_topLeft;
-}
-
-CBC_QRFinderPattern* CBC_QRFinderPatternInfo::GetTopRight() const {
-  return m_topRight;
-}
diff --git a/xfa/fxbarcode/qrcode/BC_FinderPatternInfo.h b/xfa/fxbarcode/qrcode/BC_FinderPatternInfo.h
deleted file mode 100644
index 6d0cb60f2f..0000000000
--- a/xfa/fxbarcode/qrcode/BC_FinderPatternInfo.h
+++ /dev/null
@@ -1,30 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_FINDERPATTERNINFO_H_
-#define XFA_FXBARCODE_QRCODE_BC_FINDERPATTERNINFO_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CBC_QRFinderPattern;
-
-class CBC_QRFinderPatternInfo {
- public:
-  explicit CBC_QRFinderPatternInfo(
-      CFX_ArrayTemplate<CBC_QRFinderPattern*>* patternCenters);
-  ~CBC_QRFinderPatternInfo();
-
-  CBC_QRFinderPattern* GetBottomLeft() const;
-  CBC_QRFinderPattern* GetTopLeft() const;
-  CBC_QRFinderPattern* GetTopRight() const;
-
- private:
-  CBC_QRFinderPattern* m_bottomLeft;
-  CBC_QRFinderPattern* m_topLeft;
-  CBC_QRFinderPattern* m_topRight;
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_FINDERPATTERNINFO_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRAlignmentPattern.cpp b/xfa/fxbarcode/qrcode/BC_QRAlignmentPattern.cpp
deleted file mode 100644
index 4d5a36e250..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRAlignmentPattern.cpp
+++ /dev/null
@@ -1,49 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/BC_ResultPoint.h"
-#include "xfa/fxbarcode/qrcode/BC_QRAlignmentPattern.h"
-
-CBC_QRAlignmentPattern::CBC_QRAlignmentPattern(FX_FLOAT posX,
-                                               FX_FLOAT posY,
-                                               FX_FLOAT estimateModuleSize)
-    : CBC_ResultPoint(posX, posY), m_moduleSize(estimateModuleSize) {}
-CBC_QRAlignmentPattern::~CBC_QRAlignmentPattern() {}
-FX_FLOAT CBC_QRAlignmentPattern::GetX() {
-  return m_x;
-}
-FX_FLOAT CBC_QRAlignmentPattern::GetY() {
-  return m_y;
-}
-FX_BOOL CBC_QRAlignmentPattern::AboutEquals(FX_FLOAT moduleSize,
-                                            FX_FLOAT i,
-                                            FX_FLOAT j) {
-  if ((FXSYS_fabs(i - GetY()) <= moduleSize) &&
-      (FXSYS_fabs(j - GetX()) <= moduleSize)) {
-    FX_FLOAT moduleSizeDiff = FXSYS_fabs(moduleSize - m_moduleSize);
-    return (moduleSizeDiff <= 1.0f) || (moduleSizeDiff / m_moduleSize <= 1.0f);
-  }
-  return FALSE;
-}
-CBC_QRAlignmentPattern* CBC_QRAlignmentPattern::Clone() {
-  return new CBC_QRAlignmentPattern(m_x, m_y, m_moduleSize);
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRAlignmentPattern.h b/xfa/fxbarcode/qrcode/BC_QRAlignmentPattern.h
deleted file mode 100644
index 7006b72c9c..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRAlignmentPattern.h
+++ /dev/null
@@ -1,29 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRALIGNMENTPATTERN_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRALIGNMENTPATTERN_H_
-class CBC_ResultPoint;
-class CBC_QRAlignmentPattern : public CBC_ResultPoint {
- private:
-  FX_FLOAT m_moduleSize;
-
- public:
-  CBC_QRAlignmentPattern(FX_FLOAT posX,
-                         FX_FLOAT posY,
-                         FX_FLOAT estimateModuleSize);
-  ~CBC_QRAlignmentPattern() override;
-
-  // CBC_ResultPoint
-  FX_FLOAT GetX() override;
-  FX_FLOAT GetY() override;
-
-  FX_BOOL AboutEquals(FX_FLOAT moduleSize, FX_FLOAT i, FX_FLOAT j);
-
-  CBC_QRAlignmentPattern* Clone();
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRALIGNMENTPATTERN_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.cpp b/xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.cpp
deleted file mode 100644
index efc1014188..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.cpp
+++ /dev/null
@@ -1,199 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/BC_ResultPoint.h"
-#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
-#include "xfa/fxbarcode/qrcode/BC_QRAlignmentPattern.h"
-#include "xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.h"
-
-CBC_QRAlignmentPatternFinder::CBC_QRAlignmentPatternFinder(
-    CBC_CommonBitMatrix* image,
-    int32_t startX,
-    int32_t startY,
-    int32_t width,
-    int32_t height,
-    FX_FLOAT moduleSize)
-    : m_image(image),
-      m_startX(startX),
-      m_startY(startY),
-      m_width(width),
-      m_height(height),
-      m_moduleSize(moduleSize) {
-  m_crossCheckStateCount.SetSize(3);
-}
-
-CBC_QRAlignmentPatternFinder::~CBC_QRAlignmentPatternFinder() {
-  for (int32_t i = 0; i < m_possibleCenters.GetSize(); i++)
-    delete m_possibleCenters[i];
-}
-
-CBC_QRAlignmentPattern* CBC_QRAlignmentPatternFinder::Find(int32_t& e) {
-  int32_t startX = m_startX;
-  int32_t height = m_height;
-  int32_t maxJ = startX + m_width;
-  int32_t middleI = m_startY + (height >> 1);
-  CFX_Int32Array stateCount;
-  stateCount.SetSize(3);
-  for (int32_t iGen = 0; iGen < height; iGen++) {
-    int32_t i =
-        middleI + ((iGen & 0x01) == 0 ? ((iGen + 1) >> 1) : -((iGen + 1) >> 1));
-    stateCount[0] = 0;
-    stateCount[1] = 0;
-    stateCount[2] = 0;
-    int32_t j = startX;
-    while (j < maxJ && !m_image->Get(j, i)) {
-      j++;
-    }
-    int32_t currentState = 0;
-    while (j < maxJ) {
-      if (m_image->Get(j, i)) {
-        if (currentState == 1) {
-          stateCount[currentState]++;
-        } else {
-          if (currentState == 2) {
-            if (FoundPatternCross(stateCount)) {
-              CBC_QRAlignmentPattern* confirmed =
-                  HandlePossibleCenter(stateCount, i, j);
-              if (confirmed) {
-                return confirmed;
-              }
-            }
-            stateCount[0] = stateCount[2];
-            stateCount[1] = 1;
-            stateCount[2] = 0;
-            currentState = 1;
-          } else {
-            stateCount[++currentState]++;
-          }
-        }
-      } else {
-        if (currentState == 1) {
-          currentState++;
-        }
-        stateCount[currentState]++;
-      }
-      j++;
-    }
-    if (FoundPatternCross(stateCount)) {
-      CBC_QRAlignmentPattern* confirmed =
-          HandlePossibleCenter(stateCount, i, maxJ);
-      if (confirmed) {
-        return confirmed;
-      }
-    }
-  }
-  if (m_possibleCenters.GetSize() != 0) {
-    return m_possibleCenters[0]->Clone();
-  }
-  e = BCExceptionRead;
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return nullptr;
-}
-FX_FLOAT CBC_QRAlignmentPatternFinder::CenterFromEnd(
-    const CFX_Int32Array& stateCount,
-    int32_t end) {
-  return (FX_FLOAT)(end - stateCount[2]) - stateCount[1] / 2.0f;
-}
-FX_BOOL CBC_QRAlignmentPatternFinder::FoundPatternCross(
-    const CFX_Int32Array& stateCount) {
-  FX_FLOAT moduleSize = m_moduleSize;
-  FX_FLOAT maxVariance = moduleSize / 2.0f;
-  for (int32_t i = 0; i < 3; i++) {
-    if (fabs(moduleSize - stateCount[i]) >= maxVariance) {
-      return false;
-    }
-  }
-  return TRUE;
-}
-FX_FLOAT CBC_QRAlignmentPatternFinder::CrossCheckVertical(
-    int32_t startI,
-    int32_t centerJ,
-    int32_t maxCount,
-    int32_t originalStateCountTotal) {
-  int32_t maxI = m_image->GetHeight();
-  CFX_Int32Array stateCount;
-  stateCount.Copy(m_crossCheckStateCount);
-  stateCount[0] = 0;
-  stateCount[1] = 0;
-  stateCount[2] = 0;
-  int32_t i = startI;
-  while (i >= 0 && m_image->Get(centerJ, i) && stateCount[1] <= maxCount) {
-    stateCount[1]++;
-    i--;
-  }
-  if (i < 0 || stateCount[1] > maxCount) {
-    return FXSYS_nan();
-  }
-  while (i >= 0 && !m_image->Get(centerJ, i) && stateCount[0] <= maxCount) {
-    stateCount[0]++;
-    i--;
-  }
-  if (stateCount[0] > maxCount) {
-    return FXSYS_nan();
-  }
-  i = startI + 1;
-  while (i < maxI && m_image->Get(centerJ, i) && stateCount[1] <= maxCount) {
-    stateCount[1]++;
-    i++;
-  }
-  if (i == maxI || stateCount[1] > maxCount) {
-    return FXSYS_nan();
-  }
-  while (i < maxI && !m_image->Get(centerJ, i) && stateCount[2] <= maxCount) {
-    stateCount[2]++;
-    i++;
-  }
-  if (stateCount[2] > maxCount) {
-    return FXSYS_nan();
-  }
-  int32_t stateCountTotal = stateCount[0] + stateCount[1] + stateCount[2];
-  if (5 * abs(stateCountTotal - originalStateCountTotal) >=
-      originalStateCountTotal) {
-    return FXSYS_nan();
-  }
-  return FoundPatternCross(stateCount) ? CenterFromEnd(stateCount, i)
-                                       : FXSYS_nan();
-}
-CBC_QRAlignmentPattern* CBC_QRAlignmentPatternFinder::HandlePossibleCenter(
-    const CFX_Int32Array& stateCount,
-    int32_t i,
-    int32_t j) {
-  int32_t stateCountTotal = stateCount[0] + stateCount[1] + stateCount[2];
-  FX_FLOAT centerJ = CenterFromEnd(stateCount, j);
-  FX_FLOAT centerI = CrossCheckVertical(i, (int32_t)centerJ, 2 * stateCount[1],
-                                        stateCountTotal);
-  if (!FXSYS_isnan(centerI)) {
-    FX_FLOAT estimatedModuleSize =
-        (FX_FLOAT)(stateCount[0] + stateCount[1] + stateCount[2]) / 3.0f;
-    int32_t max = m_possibleCenters.GetSize();
-    for (int32_t index = 0; index < max; index++) {
-      CBC_QRAlignmentPattern* center = m_possibleCenters[index];
-      if (center->AboutEquals(estimatedModuleSize, centerI, centerJ)) {
-        return new CBC_QRAlignmentPattern(centerJ, centerI,
-                                          estimatedModuleSize);
-      }
-    }
-    m_possibleCenters.Add(
-        new CBC_QRAlignmentPattern(centerJ, centerI, estimatedModuleSize));
-  }
-  return nullptr;
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.h b/xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.h
deleted file mode 100644
index e524c4bdaf..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.h
+++ /dev/null
@@ -1,47 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRALIGNMENTPATTERNFINDER_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRALIGNMENTPATTERNFINDER_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-#include "xfa/fxbarcode/utils.h"
-
-class CBC_CommonBitMatrix;
-class CBC_QRAlignmentPattern;
-
-class CBC_QRAlignmentPatternFinder {
- public:
-  CBC_QRAlignmentPatternFinder(CBC_CommonBitMatrix* image,
-                               int32_t startX,
-                               int32_t startY,
-                               int32_t width,
-                               int32_t height,
-                               FX_FLOAT moduleSize);
-  virtual ~CBC_QRAlignmentPatternFinder();
-  FX_BOOL FoundPatternCross(const CFX_Int32Array& stateCount);
-  FX_FLOAT CrossCheckVertical(int32_t startI,
-                              int32_t startJ,
-                              int32_t maxCount,
-                              int32_t originalStateCountTotal);
-  CBC_QRAlignmentPattern* Find(int32_t& e);
-  CBC_QRAlignmentPattern* HandlePossibleCenter(const CFX_Int32Array& stateCount,
-                                               int32_t i,
-                                               int32_t j);
-  static FX_FLOAT CenterFromEnd(const CFX_Int32Array& stateCount, int32_t end);
-
- private:
-  CBC_CommonBitMatrix* m_image;
-  CFX_ArrayTemplate<CBC_QRAlignmentPattern*> m_possibleCenters;
-  int32_t m_startX;
-  int32_t m_startY;
-  int32_t m_width;
-  int32_t m_height;
-  FX_FLOAT m_moduleSize;
-  CFX_Int32Array m_crossCheckStateCount;
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRALIGNMENTPATTERNFINDER_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRBitMatrixParser.cpp b/xfa/fxbarcode/qrcode/BC_QRBitMatrixParser.cpp
deleted file mode 100644
index 81d27538bf..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRBitMatrixParser.cpp
+++ /dev/null
@@ -1,183 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/qrcode/BC_QRBitMatrixParser.h"
-
-#include <memory>
-
-#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderVersion.h"
-#include "xfa/fxbarcode/qrcode/BC_QRDataMask.h"
-#include "xfa/fxbarcode/utils.h"
-
-CBC_QRBitMatrixParser::CBC_QRBitMatrixParser() {}
-void CBC_QRBitMatrixParser::Init(CBC_CommonBitMatrix* bitMatrix, int32_t& e) {
-  m_dimension = bitMatrix->GetDimension(e);
-  BC_EXCEPTION_CHECK_ReturnVoid(e);
-  m_tempBitMatrix = bitMatrix;
-  if (m_dimension < 21 || (m_dimension & 0x03) != 1) {
-    e = BCExceptionRead;
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-  }
-  m_bitMatrix = m_tempBitMatrix;
-  m_parsedFormatInfo = nullptr;
-  m_version = nullptr;
-}
-CBC_QRBitMatrixParser::~CBC_QRBitMatrixParser() {
-  delete m_parsedFormatInfo;
-}
-CBC_QRCoderFormatInformation* CBC_QRBitMatrixParser::ReadFormatInformation(
-    int32_t& e) {
-  if (m_parsedFormatInfo) {
-    return m_parsedFormatInfo;
-  }
-  int32_t formatInfoBits = 0;
-  int32_t j;
-  for (j = 0; j < 6; j++) {
-    formatInfoBits = CopyBit(8, j, formatInfoBits);
-  }
-  formatInfoBits = CopyBit(8, 7, formatInfoBits);
-  formatInfoBits = CopyBit(8, 8, formatInfoBits);
-  formatInfoBits = CopyBit(7, 8, formatInfoBits);
-  for (int32_t i = 5; i >= 0; i--) {
-    formatInfoBits = CopyBit(i, 8, formatInfoBits);
-  }
-  m_parsedFormatInfo =
-      CBC_QRCoderFormatInformation::DecodeFormatInformation(formatInfoBits);
-  if (m_parsedFormatInfo) {
-    return m_parsedFormatInfo;
-  }
-  int32_t dimension = m_bitMatrix->GetDimension(e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  formatInfoBits = 0;
-  int32_t iMin = dimension - 8;
-  for (j = dimension - 1; j >= iMin; j--) {
-    formatInfoBits = CopyBit(j, 8, formatInfoBits);
-  }
-  for (int32_t k = dimension - 7; k < dimension; k++) {
-    formatInfoBits = CopyBit(8, k, formatInfoBits);
-  }
-  m_parsedFormatInfo =
-      CBC_QRCoderFormatInformation::DecodeFormatInformation(formatInfoBits);
-  if (m_parsedFormatInfo) {
-    return m_parsedFormatInfo;
-  }
-  e = BCExceptionRead;
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return nullptr;
-}
-CBC_QRCoderVersion* CBC_QRBitMatrixParser::ReadVersion(int32_t& e) {
-  if (m_version) {
-    return m_version;
-  }
-  int32_t dimension = m_bitMatrix->GetDimension(e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  int32_t provisionVersion = (dimension - 17) >> 2;
-  if (provisionVersion <= 6) {
-    CBC_QRCoderVersion* qrv =
-        CBC_QRCoderVersion::GetVersionForNumber(provisionVersion, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-    return qrv;
-  }
-  int32_t versionBits = 0;
-  for (int32_t i = 5; i >= 0; i--) {
-    int32_t jMin = dimension - 11;
-    for (int32_t j = dimension - 9; j >= jMin; j--) {
-      versionBits = CopyBit(i, j, versionBits);
-    }
-  }
-  m_version = CBC_QRCoderVersion::DecodeVersionInformation(versionBits, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  if (m_version && m_version->GetDimensionForVersion() == dimension) {
-    return m_version;
-  }
-  versionBits = 0;
-  for (int32_t j = 5; j >= 0; j--) {
-    int32_t iMin = dimension - 11;
-    for (int32_t i = dimension - 9; i >= iMin; i--) {
-      versionBits = CopyBit(i, j, versionBits);
-    }
-  }
-  m_version = CBC_QRCoderVersion::DecodeVersionInformation(versionBits, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  if (m_version && m_version->GetDimensionForVersion() == dimension) {
-    return m_version;
-  }
-  e = BCExceptionRead;
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return nullptr;
-}
-int32_t CBC_QRBitMatrixParser::CopyBit(int32_t i,
-                                       int32_t j,
-                                       int32_t versionBits) {
-  return m_bitMatrix->Get(j, i) ? (versionBits << 1) | 0x1 : versionBits << 1;
-}
-CFX_ByteArray* CBC_QRBitMatrixParser::ReadCodewords(int32_t& e) {
-  CBC_QRCoderFormatInformation* formatInfo = ReadFormatInformation(e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr) CBC_QRCoderVersion* version =
-      ReadVersion(e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  CBC_QRDataMask* dataMask =
-      CBC_QRDataMask::ForReference((int32_t)(formatInfo->GetDataMask()), e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  int32_t dimension = m_bitMatrix->GetDimension(e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  dataMask->UnmaskBitMatrix(m_bitMatrix, dimension);
-  std::unique_ptr<CBC_CommonBitMatrix> functionPattern(
-      version->BuildFunctionPattern(e));
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  FX_BOOL readingUp = TRUE;
-  std::unique_ptr<CFX_ByteArray> result(new CFX_ByteArray);
-  result->SetSize(version->GetTotalCodeWords());
-  int32_t resultOffset = 0;
-  int32_t currentByte = 0;
-  int32_t bitsRead = 0;
-  for (int32_t j = dimension - 1; j > 0; j -= 2) {
-    if (j == 6) {
-      j--;
-    }
-    for (int32_t count = 0; count < dimension; count++) {
-      int32_t i = readingUp ? dimension - 1 - count : count;
-      for (int32_t col = 0; col < 2; col++) {
-        if (!functionPattern->Get(j - col, i)) {
-          bitsRead++;
-          currentByte <<= 1;
-          if (m_bitMatrix->Get(j - col, i)) {
-            currentByte |= 1;
-          }
-          if (bitsRead == 8) {
-            (*result)[resultOffset++] = (uint8_t)currentByte;
-            bitsRead = 0;
-            currentByte = 0;
-          }
-        }
-      }
-    }
-    readingUp ^= TRUE;
-  }
-  if (resultOffset != version->GetTotalCodeWords()) {
-    e = BCExceptionRead;
-    BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  }
-  return result.release();
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRBitMatrixParser.h b/xfa/fxbarcode/qrcode/BC_QRBitMatrixParser.h
deleted file mode 100644
index 66b28d924b..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRBitMatrixParser.h
+++ /dev/null
@@ -1,34 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRBITMATRIXPARSER_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRBITMATRIXPARSER_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CBC_CommonBitMatrix;
-class CBC_QRCoderVersion;
-class CBC_QRCoderFormatInformation;
-
-class CBC_QRBitMatrixParser {
- private:
-  CBC_CommonBitMatrix* m_bitMatrix;
-  CBC_CommonBitMatrix* m_tempBitMatrix;
-  CBC_QRCoderVersion* m_version;
-  CBC_QRCoderFormatInformation* m_parsedFormatInfo;
-  int32_t m_dimension;
-
- public:
-  CBC_QRBitMatrixParser();
-  virtual ~CBC_QRBitMatrixParser();
-  CBC_QRCoderFormatInformation* ReadFormatInformation(int32_t& e);
-  CBC_QRCoderVersion* ReadVersion(int32_t& e);
-  int32_t CopyBit(int32_t i, int32_t j, int32_t versionBits);
-  CFX_ByteArray* ReadCodewords(int32_t& e);
-  virtual void Init(CBC_CommonBitMatrix* bitMatrix, int32_t& e);
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRBITMATRIXPARSER_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRCodeReader.cpp b/xfa/fxbarcode/qrcode/BC_QRCodeReader.cpp
deleted file mode 100644
index 0f9c44f0c5..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRCodeReader.cpp
+++ /dev/null
@@ -1,104 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/qrcode/BC_QRCodeReader.h"
-
-#include <memory>
-
-#include "xfa/fxbarcode/BC_Binarizer.h"
-#include "xfa/fxbarcode/BC_BinaryBitmap.h"
-#include "xfa/fxbarcode/BC_BufferedImageLuminanceSource.h"
-#include "xfa/fxbarcode/BC_LuminanceSource.h"
-#include "xfa/fxbarcode/BC_Reader.h"
-#include "xfa/fxbarcode/BC_ResultPoint.h"
-#include "xfa/fxbarcode/common/BC_CommonDecoderResult.h"
-#include "xfa/fxbarcode/common/BC_GlobalHistogramBinarizer.h"
-#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderDecoder.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderMode.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderVersion.h"
-#include "xfa/fxbarcode/qrcode/BC_QRDataMask.h"
-#include "xfa/fxbarcode/qrcode/BC_QRDetector.h"
-#include "xfa/fxbarcode/qrcode/BC_QRDetectorResult.h"
-
-CBC_QRCodeReader::CBC_QRCodeReader() : m_decoder(nullptr) {}
-void CBC_QRCodeReader::Init() {
-  m_decoder = new CBC_QRCoderDecoder;
-  m_decoder->Init();
-}
-CBC_QRCodeReader::~CBC_QRCodeReader() {
-  delete m_decoder;
-}
-CFX_ByteString CBC_QRCodeReader::Decode(CBC_BinaryBitmap* image,
-                                        int32_t hints,
-                                        int32_t& e) {
-  CBC_CommonBitMatrix* matrix = image->GetMatrix(e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  CBC_QRDetector detector(matrix);
-  std::unique_ptr<CBC_QRDetectorResult> detectorResult(
-      detector.Detect(hints, e));
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  std::unique_ptr<CBC_CommonDecoderResult> decodeResult(
-      m_decoder->Decode(detectorResult->GetBits(), 0, e));
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  return (decodeResult->GetText());
-}
-CFX_ByteString CBC_QRCodeReader::Decode(const CFX_WideString& filename,
-                                        int32_t hints,
-                                        int32_t byteModeDecode,
-                                        int32_t& e) {
-  CBC_BufferedImageLuminanceSource source(filename);
-  source.Init(e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  CBC_GlobalHistogramBinarizer binarizer(&source);
-  CBC_BinaryBitmap bitmap(&binarizer);
-  CFX_ByteString bs = Decode(&bitmap, hints, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  return bs;
-}
-CFX_ByteString CBC_QRCodeReader::Decode(CFX_DIBitmap* pBitmap,
-                                        int32_t hints,
-                                        int32_t byteModeDecode,
-                                        int32_t& e) {
-  CBC_BufferedImageLuminanceSource source(pBitmap);
-  CBC_GlobalHistogramBinarizer binarizer(&source);
-  CBC_BinaryBitmap bitmap(&binarizer);
-  CFX_ByteString bs = Decode(&bitmap, hints, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  return bs;
-}
-CFX_ByteString CBC_QRCodeReader::Decode(CBC_BinaryBitmap* image, int32_t& e) {
-  CFX_ByteString bs = Decode(image, 0, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, "");
-  return bs;
-}
-void CBC_QRCodeReader::ReleaseAll() {
-  delete CBC_ReedSolomonGF256::QRCodeFild;
-  CBC_ReedSolomonGF256::QRCodeFild = nullptr;
-  delete CBC_ReedSolomonGF256::DataMatrixField;
-  CBC_ReedSolomonGF256::DataMatrixField = nullptr;
-  CBC_QRCoderMode::Destroy();
-  CBC_QRCoderErrorCorrectionLevel::Destroy();
-  CBC_QRDataMask::Destroy();
-  CBC_QRCoderVersion::Destroy();
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRCodeReader.h b/xfa/fxbarcode/qrcode/BC_QRCodeReader.h
deleted file mode 100644
index b3a72b4d18..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRCodeReader.h
+++ /dev/null
@@ -1,45 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRCODEREADER_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRCODEREADER_H_
-
-#include <stdint.h>
-
-#include "core/fxcrt/include/fx_string.h"
-#include "xfa/fxbarcode/BC_Reader.h"
-
-class CBC_BinaryBitmap;
-class CBC_QRCoderDecoder;
-class CFX_DIBitmap;
-
-class CBC_QRCodeReader : public CBC_Reader {
- private:
-  CBC_QRCoderDecoder* m_decoder;
-
- public:
-  CBC_QRCodeReader();
-  ~CBC_QRCodeReader() override;
-
-  CFX_ByteString Decode(CFX_DIBitmap* pBitmap,
-                        int32_t hints,
-                        int32_t byteModeDecode,
-                        int32_t& e);
-  CFX_ByteString Decode(const CFX_WideString& filename,
-                        int32_t hints,
-                        int32_t byteModeDecode,
-                        int32_t& e);
-  static void ReleaseAll();
-
-  // CBC_Reader
-  CFX_ByteString Decode(CBC_BinaryBitmap* image,
-                        int32_t hints,
-                        int32_t& e) override;
-  CFX_ByteString Decode(CBC_BinaryBitmap* image, int32_t& e) override;
-  virtual void Init();
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRCODEREADER_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRCodeWriter.cpp b/xfa/fxbarcode/qrcode/BC_QRCodeWriter.cpp
index 8e1d6edb70..c9f16cafd1 100644
--- a/xfa/fxbarcode/qrcode/BC_QRCodeWriter.cpp
+++ b/xfa/fxbarcode/qrcode/BC_QRCodeWriter.cpp
@@ -20,14 +20,15 @@
  * limitations under the License.
  */
 
-#include "xfa/fxbarcode/BC_Reader.h"
 #include "xfa/fxbarcode/BC_TwoDimWriter.h"
 #include "xfa/fxbarcode/common/BC_CommonByteMatrix.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCodeReader.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCodeWriter.h"
+#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoder.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoderEncoder.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
+#include "xfa/fxbarcode/qrcode/BC_QRCoderMode.h"
+#include "xfa/fxbarcode/qrcode/BC_QRCoderVersion.h"
+#include "xfa/fxbarcode/qrcode/BC_QRCodeWriter.h"
 
 CBC_QRCodeWriter::CBC_QRCodeWriter() {
   m_bFixedSize = TRUE;
@@ -36,7 +37,13 @@ CBC_QRCodeWriter::CBC_QRCodeWriter() {
 }
 CBC_QRCodeWriter::~CBC_QRCodeWriter() {}
 void CBC_QRCodeWriter::ReleaseAll() {
-  CBC_QRCodeReader::ReleaseAll();
+  delete CBC_ReedSolomonGF256::QRCodeFild;
+  CBC_ReedSolomonGF256::QRCodeFild = nullptr;
+  delete CBC_ReedSolomonGF256::DataMatrixField;
+  CBC_ReedSolomonGF256::DataMatrixField = nullptr;
+  CBC_QRCoderMode::Destroy();
+  CBC_QRCoderErrorCorrectionLevel::Destroy();
+  CBC_QRCoderVersion::Destroy();
 }
 FX_BOOL CBC_QRCodeWriter::SetVersion(int32_t version) {
   if (version < 0 || version > 40) {
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderDecoder.cpp b/xfa/fxbarcode/qrcode/BC_QRCoderDecoder.cpp
deleted file mode 100644
index 97219ddd72..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRCoderDecoder.cpp
+++ /dev/null
@@ -1,125 +0,0 @@
-// 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 2008 ZXing authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/qrcode/BC_QRCoderDecoder.h"
-
-#include <memory>
-
-#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
-#include "xfa/fxbarcode/common/BC_CommonDecoderResult.h"
-#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.h"
-#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
-#include "xfa/fxbarcode/qrcode/BC_QRBitMatrixParser.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderVersion.h"
-#include "xfa/fxbarcode/qrcode/BC_QRDataBlock.h"
-#include "xfa/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.h"
-
-CBC_QRCoderDecoder::CBC_QRCoderDecoder() {
-  m_rsDecoder = nullptr;
-}
-
-void CBC_QRCoderDecoder::Init() {
-  m_rsDecoder = new CBC_ReedSolomonDecoder(CBC_ReedSolomonGF256::QRCodeFild);
-}
-CBC_QRCoderDecoder::~CBC_QRCoderDecoder() {
-  delete m_rsDecoder;
-}
-CBC_CommonDecoderResult* CBC_QRCoderDecoder::Decode(FX_BOOL* image,
-                                                    int32_t width,
-                                                    int32_t height,
-                                                    int32_t& e) {
-  CBC_CommonBitMatrix bits;
-  bits.Init(width);
-  for (int32_t i = 0; i < width; i++) {
-    for (int32_t j = 0; j < height; j++) {
-      if (image[i * width + j]) {
-        bits.Set(j, i);
-      }
-    }
-  }
-  CBC_CommonDecoderResult* cdr = Decode(&bits, height, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return cdr;
-}
-CBC_CommonDecoderResult* CBC_QRCoderDecoder::Decode(CBC_CommonBitMatrix* bits,
-                                                    int32_t byteModeDecode,
-                                                    int32_t& e) {
-  CBC_QRBitMatrixParser parser;
-  parser.Init(bits, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  CBC_QRCoderVersion* version = parser.ReadVersion(e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  CBC_QRCoderFormatInformation* temp = parser.ReadFormatInformation(e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  CBC_QRCoderErrorCorrectionLevel* ecLevel = temp->GetErrorCorrectionLevel();
-  std::unique_ptr<CFX_ByteArray> codewords(parser.ReadCodewords(e));
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  CFX_ArrayTemplate<CBC_QRDataBlock*>* dataBlocks =
-      CBC_QRDataBlock::GetDataBlocks(codewords.get(), version, ecLevel, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  int32_t totalBytes = 0;
-  for (int32_t i = 0; i < dataBlocks->GetSize(); i++) {
-    totalBytes += (*dataBlocks)[i]->GetNumDataCodewords();
-  }
-  CFX_ByteArray resultBytes;
-  for (int32_t j = 0; j < dataBlocks->GetSize(); j++) {
-    CBC_QRDataBlock* dataBlock = (*dataBlocks)[j];
-    CFX_ByteArray* codewordBytes = dataBlock->GetCodewords();
-    int32_t numDataCodewords = dataBlock->GetNumDataCodewords();
-    CorrectErrors(codewordBytes, numDataCodewords, e);
-    if (e != BCExceptionNO) {
-      for (int32_t k = 0; k < dataBlocks->GetSize(); k++) {
-        delete (*dataBlocks)[k];
-      }
-      delete dataBlocks;
-      return nullptr;
-    }
-    for (int32_t i = 0; i < numDataCodewords; i++) {
-      resultBytes.Add((*codewordBytes)[i]);
-    }
-  }
-  for (int32_t k = 0; k < dataBlocks->GetSize(); k++) {
-    delete (*dataBlocks)[k];
-  }
-  delete dataBlocks;
-  CBC_CommonDecoderResult* cdr = CBC_QRDecodedBitStreamParser::Decode(
-      &resultBytes, version, ecLevel, byteModeDecode, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return cdr;
-}
-void CBC_QRCoderDecoder::CorrectErrors(CFX_ByteArray* codewordBytes,
-                                       int32_t numDataCodewords,
-                                       int32_t& e) {
-  int32_t numCodewords = codewordBytes->GetSize();
-  CFX_Int32Array codewordsInts;
-  codewordsInts.SetSize(numCodewords);
-  for (int32_t i = 0; i < numCodewords; i++) {
-    codewordsInts[i] = (int32_t)((*codewordBytes)[i] & 0xff);
-  }
-  int32_t numECCodewords = codewordBytes->GetSize() - numDataCodewords;
-  m_rsDecoder->Decode(&codewordsInts, numECCodewords, e);
-  BC_EXCEPTION_CHECK_ReturnVoid(e);
-  for (int32_t k = 0; k < numDataCodewords; k++) {
-    (*codewordBytes)[k] = (uint8_t)codewordsInts[k];
-  }
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderDecoder.h b/xfa/fxbarcode/qrcode/BC_QRCoderDecoder.h
deleted file mode 100644
index 3a588b6293..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRCoderDecoder.h
+++ /dev/null
@@ -1,37 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRCODERDECODER_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRCODERDECODER_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CBC_CommonBitMatrix;
-class CBC_ReedSolomonDecoder;
-class CBC_CommonDecoderResult;
-
-class CBC_QRCoderDecoder {
- private:
-  CBC_ReedSolomonDecoder* m_rsDecoder;
-
- public:
-  CBC_QRCoderDecoder();
-  virtual ~CBC_QRCoderDecoder();
-
-  CBC_CommonDecoderResult* Decode(FX_BOOL* image,
-                                  int32_t width,
-                                  int32_t height,
-                                  int32_t& e);
-  CBC_CommonDecoderResult* Decode(CBC_CommonBitMatrix* bits,
-                                  int32_t byteModeDecode,
-                                  int32_t& e);
-  void CorrectErrors(CFX_ByteArray* codewordBytes,
-                     int32_t numDataCodewords,
-                     int32_t& e);
-  virtual void Init();
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRCODERDECODER_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp b/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp
deleted file mode 100644
index 1c85aa16d7..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp
+++ /dev/null
@@ -1,111 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h"
-
-#include <limits>
-
-#include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
-#include "xfa/fxbarcode/utils.h"
-
-namespace {
-
-const uint16_t FORMAT_INFO_MASK_QR = 0X5412;
-
-struct DecodeInfo {
-  uint16_t target;
-  uint16_t format;
-};
-const DecodeInfo FORMAT_INFO_DECODE_LOOKUP[32] = {
-    {0x5412, 0x00}, {0x5125, 0x01}, {0x5E7C, 0x02}, {0x5B4B, 0x03},
-    {0x45F9, 0x04}, {0x40CE, 0x05}, {0x4F97, 0x06}, {0x4AA0, 0x07},
-    {0x77C4, 0x08}, {0x72F3, 0x09}, {0x7DAA, 0x0A}, {0x789D, 0x0B},
-    {0x662F, 0x0C}, {0x6318, 0x0D}, {0x6C41, 0x0E}, {0x6976, 0x0F},
-    {0x1689, 0x10}, {0x13BE, 0x11}, {0x1CE7, 0x12}, {0x19D0, 0x13},
-    {0x0762, 0x14}, {0x0255, 0x15}, {0x0D0C, 0x16}, {0x083B, 0x17},
-    {0x355F, 0x18}, {0x3068, 0x19}, {0x3F31, 0x1A}, {0x3A06, 0x1B},
-    {0x24B4, 0x1C}, {0x2183, 0x1D}, {0x2EDA, 0x1E}, {0x2BED, 0x1F},
-};
-const uint8_t BITS_SET_IN_HALF_BYTE[] = {0, 1, 1, 2, 1, 2, 2, 3,
-                                         1, 2, 2, 3, 2, 3, 3, 4};
-
-CBC_QRCoderFormatInformation* DoDecodeFormatInformation(
-    int32_t maskedFormatInfo) {
-  int32_t bestDifference = std::numeric_limits<int32_t>::max();
-  int32_t bestFormatInfo = 0;
-  for (int32_t i = 0; i < 32; ++i) {
-    const DecodeInfo& decodeInfo = FORMAT_INFO_DECODE_LOOKUP[i];
-    if (decodeInfo.target == maskedFormatInfo)
-      return new CBC_QRCoderFormatInformation(decodeInfo.format);
-
-    int32_t bitsDifference = CBC_QRCoderFormatInformation::NumBitsDiffering(
-        maskedFormatInfo, decodeInfo.target);
-    if (bitsDifference < bestDifference) {
-      bestFormatInfo = decodeInfo.format;
-      bestDifference = bitsDifference;
-    }
-  }
-  if (bestDifference > 3)
-    return nullptr;
-  return new CBC_QRCoderFormatInformation(bestFormatInfo);
-}
-
-}  // namespace
-
-CBC_QRCoderFormatInformation::CBC_QRCoderFormatInformation(int32_t formatInfo)
-    : m_dataMask(static_cast<uint8_t>(formatInfo & 0x07)) {
-  m_errorCorrectLevel =
-      CBC_QRCoderErrorCorrectionLevel::ForBits((formatInfo >> 3) & 0x03);
-}
-
-CBC_QRCoderFormatInformation::~CBC_QRCoderFormatInformation() {}
-int32_t CBC_QRCoderFormatInformation::NumBitsDiffering(int32_t a, int32_t b) {
-  a ^= b;
-  return BITS_SET_IN_HALF_BYTE[a & 0x0F] +
-         BITS_SET_IN_HALF_BYTE[(a >> 4) & 0x0F] +
-         BITS_SET_IN_HALF_BYTE[(a >> 8) & 0x0F] +
-         BITS_SET_IN_HALF_BYTE[(a >> 12) & 0x0F] +
-         BITS_SET_IN_HALF_BYTE[(a >> 16) & 0x0F] +
-         BITS_SET_IN_HALF_BYTE[(a >> 20) & 0x0F] +
-         BITS_SET_IN_HALF_BYTE[(a >> 24) & 0x0F] +
-         BITS_SET_IN_HALF_BYTE[(a >> 28) & 0x0F];
-}
-uint8_t CBC_QRCoderFormatInformation::GetDataMask() const {
-  return m_dataMask;
-}
-
-// static
-CBC_QRCoderErrorCorrectionLevel*
-CBC_QRCoderFormatInformation::GetErrorCorrectionLevel() {
-  return m_errorCorrectLevel;
-}
-
-// static
-CBC_QRCoderFormatInformation*
-CBC_QRCoderFormatInformation::DecodeFormatInformation(
-    int32_t maskedFormatInfo) {
-  CBC_QRCoderFormatInformation* formatInfo =
-      DoDecodeFormatInformation(maskedFormatInfo);
-  if (formatInfo)
-    return formatInfo;
-  return DoDecodeFormatInformation(maskedFormatInfo ^ FORMAT_INFO_MASK_QR);
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h b/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h
deleted file mode 100644
index b069795ce1..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h
+++ /dev/null
@@ -1,30 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRCODERFORMATINFORMATION_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRCODERFORMATINFORMATION_H_
-
-#include <stdint.h>
-
-class CBC_QRCoderErrorCorrectionLevel;
-class CBC_QRCoderFormatInformation {
- public:
-  explicit CBC_QRCoderFormatInformation(int32_t formatInfo);
-  ~CBC_QRCoderFormatInformation();
-
-  uint8_t GetDataMask() const;
-  CBC_QRCoderErrorCorrectionLevel* GetErrorCorrectionLevel();
-
-  static int32_t NumBitsDiffering(int32_t a, int32_t b);
-  static CBC_QRCoderFormatInformation* DecodeFormatInformation(
-      int32_t maskedFormatInfo);
-
- private:
-  CBC_QRCoderErrorCorrectionLevel* m_errorCorrectLevel;
-  const uint8_t m_dataMask;
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRCODERFORMATINFORMATION_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderVersion.cpp b/xfa/fxbarcode/qrcode/BC_QRCoderVersion.cpp
index cae0d54c7c..b0b445bede 100644
--- a/xfa/fxbarcode/qrcode/BC_QRCoderVersion.cpp
+++ b/xfa/fxbarcode/qrcode/BC_QRCoderVersion.cpp
@@ -25,10 +25,28 @@
 #include "xfa/fxbarcode/qrcode/BC_QRCoderECB.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoderECBlocks.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h"
 #include "xfa/fxbarcode/qrcode/BC_QRCoderVersion.h"
 #include "xfa/fxbarcode/utils.h"
 
+namespace {
+
+const uint8_t BITS_SET_IN_HALF_BYTE[] = {0, 1, 1, 2, 1, 2, 2, 3,
+                                         1, 2, 2, 3, 2, 3, 3, 4};
+
+int32_t NumBitsDiffering(int32_t a, int32_t b) {
+  a ^= b;
+  return BITS_SET_IN_HALF_BYTE[a & 0x0F] +
+         BITS_SET_IN_HALF_BYTE[(a >> 4) & 0x0F] +
+         BITS_SET_IN_HALF_BYTE[(a >> 8) & 0x0F] +
+         BITS_SET_IN_HALF_BYTE[(a >> 12) & 0x0F] +
+         BITS_SET_IN_HALF_BYTE[(a >> 16) & 0x0F] +
+         BITS_SET_IN_HALF_BYTE[(a >> 20) & 0x0F] +
+         BITS_SET_IN_HALF_BYTE[(a >> 24) & 0x0F] +
+         BITS_SET_IN_HALF_BYTE[(a >> 28) & 0x0F];
+}
+
+}  // namespace
+
 const int32_t CBC_QRCoderVersion::VERSION_DECODE_INFO[] = {
     0x07C94, 0x085BC, 0x09A99, 0x0A4D3, 0x0BBF6, 0x0C762, 0x0D847,
     0x0E60D, 0x0F928, 0x10B78, 0x1145D, 0x12A17, 0x13532, 0x149A6,
@@ -372,8 +390,7 @@ CBC_QRCoderVersion* CBC_QRCoderVersion::DecodeVersionInformation(
       BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
       return qcv;
     }
-    int32_t bitsDifference = CBC_QRCoderFormatInformation::NumBitsDiffering(
-        versionBits, targetVersion);
+    int32_t bitsDifference = NumBitsDiffering(versionBits, targetVersion);
     if (bitsDifference < bestDifference) {
       bestVersion = i + 7;
       bestDifference = bitsDifference;
diff --git a/xfa/fxbarcode/qrcode/BC_QRDataBlock.cpp b/xfa/fxbarcode/qrcode/BC_QRDataBlock.cpp
deleted file mode 100644
index 0be3c8d61e..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRDataBlock.cpp
+++ /dev/null
@@ -1,109 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/qrcode/BC_QRDataBlock.h"
-
-#include <memory>
-
-#include "xfa/fxbarcode/qrcode/BC_QRCoderECB.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderECBlocks.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderVersion.h"
-#include "xfa/fxbarcode/utils.h"
-
-CBC_QRDataBlock::CBC_QRDataBlock(int32_t numDataCodewords,
-                                 CFX_ByteArray* codewords)
-    : m_numDataCodewords(numDataCodewords), m_codewords(codewords) {}
-CBC_QRDataBlock::~CBC_QRDataBlock() {
-  delete m_codewords;
-}
-int32_t CBC_QRDataBlock::GetNumDataCodewords() {
-  return m_numDataCodewords;
-}
-CFX_ByteArray* CBC_QRDataBlock::GetCodewords() {
-  return m_codewords;
-}
-CFX_ArrayTemplate<CBC_QRDataBlock*>* CBC_QRDataBlock::GetDataBlocks(
-    CFX_ByteArray* rawCodewords,
-    CBC_QRCoderVersion* version,
-    CBC_QRCoderErrorCorrectionLevel* ecLevel,
-    int32_t& e) {
-  if (rawCodewords->GetSize() != version->GetTotalCodeWords()) {
-    e = BCExceptionIllegalArgument;
-    BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  }
-  CBC_QRCoderECBlocks* ecBlocks = version->GetECBlocksForLevel(ecLevel);
-  int32_t totalBlocks = 0;
-  CFX_ArrayTemplate<CBC_QRCoderECB*>* ecBlockArray = ecBlocks->GetECBlocks();
-  int32_t i = 0;
-  for (i = 0; i < ecBlockArray->GetSize(); i++) {
-    totalBlocks += (*ecBlockArray)[i]->GetCount();
-  }
-  std::unique_ptr<CFX_ArrayTemplate<CBC_QRDataBlock*>> result(
-      new CFX_ArrayTemplate<CBC_QRDataBlock*>());
-  result->SetSize(totalBlocks);
-  int32_t numResultBlocks = 0;
-  for (int32_t j = 0; j < ecBlockArray->GetSize(); j++) {
-    CBC_QRCoderECB* ecBlock = (*ecBlockArray)[j];
-    for (int32_t k = 0; k < ecBlock->GetCount(); k++) {
-      int32_t numDataCodewords = ecBlock->GetDataCodeWords();
-      int32_t numBlockCodewords =
-          ecBlocks->GetECCodeWordsPerBlock() + numDataCodewords;
-      CFX_ByteArray* bytearray = new CFX_ByteArray();
-      bytearray->SetSize(numBlockCodewords);
-      (*result)[numResultBlocks++] =
-          new CBC_QRDataBlock(numDataCodewords, bytearray);
-    }
-  }
-  int32_t shorterBlocksTotalCodewords = (*result)[0]->m_codewords->GetSize();
-  int32_t longerBlocksStartAt = result->GetSize() - 1;
-  while (longerBlocksStartAt >= 0) {
-    int32_t numCodewords =
-        (*result)[longerBlocksStartAt]->m_codewords->GetSize();
-    if (numCodewords == shorterBlocksTotalCodewords) {
-      break;
-    }
-    longerBlocksStartAt--;
-  }
-  longerBlocksStartAt++;
-  int32_t shorterBlocksNumDataCodewords =
-      shorterBlocksTotalCodewords - ecBlocks->GetECCodeWordsPerBlock();
-  int32_t rawCodewordsOffset = 0;
-  int32_t x = 0;
-  for (int32_t k = 0; k < shorterBlocksNumDataCodewords; k++) {
-    for (x = 0; x < numResultBlocks; x++) {
-      (*((*result)[x]->m_codewords))[k] = (*rawCodewords)[rawCodewordsOffset++];
-    }
-  }
-  for (x = longerBlocksStartAt; x < numResultBlocks; x++) {
-    (*((*result)[x]->m_codewords))[shorterBlocksNumDataCodewords] =
-        (*rawCodewords)[rawCodewordsOffset++];
-  }
-  int32_t max = (*result)[0]->m_codewords->GetSize();
-  for (i = shorterBlocksNumDataCodewords; i < max; i++) {
-    for (int32_t y = 0; y < numResultBlocks; y++) {
-      int32_t iOffset = y < longerBlocksStartAt ? i : i + 1;
-      (*((*result)[y]->m_codewords))[iOffset] =
-          (*rawCodewords)[rawCodewordsOffset++];
-    }
-  }
-  return result.release();
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRDataBlock.h b/xfa/fxbarcode/qrcode/BC_QRDataBlock.h
deleted file mode 100644
index 014018dec0..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRDataBlock.h
+++ /dev/null
@@ -1,33 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRDATABLOCK_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRDATABLOCK_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CBC_QRCoderErrorCorrectionLevel;
-class CBC_QRCoderVersion;
-
-class CBC_QRDataBlock final {
- public:
-  ~CBC_QRDataBlock();
-  int32_t GetNumDataCodewords();
-  CFX_ByteArray* GetCodewords();
-  static CFX_ArrayTemplate<CBC_QRDataBlock*>* GetDataBlocks(
-      CFX_ByteArray* rawCodewords,
-      CBC_QRCoderVersion* version,
-      CBC_QRCoderErrorCorrectionLevel* ecLevel,
-      int32_t& e);
-
- private:
-  CBC_QRDataBlock(int32_t numDataCodewords, CFX_ByteArray* codewords);
-
-  int32_t m_numDataCodewords;
-  CFX_ByteArray* m_codewords;
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRDATABLOCK_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRDataMask.cpp b/xfa/fxbarcode/qrcode/BC_QRDataMask.cpp
deleted file mode 100644
index e21b5d2d37..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRDataMask.cpp
+++ /dev/null
@@ -1,164 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
-#include "xfa/fxbarcode/qrcode/BC_QRDataMask.h"
-#include "xfa/fxbarcode/utils.h"
-
-namespace {
-
-int32_t N_DATA_MASKS = 0;
-CFX_ArrayTemplate<CBC_QRDataMask*>* DATA_MASKS = nullptr;
-
-}  // namespace
-
-void CBC_QRDataMask::Initialize() {
-  DATA_MASKS = new CFX_ArrayTemplate<CBC_QRDataMask*>();
-  N_DATA_MASKS = BuildDataMasks();
-}
-
-void CBC_QRDataMask::Finalize() {
-  Destroy();
-  delete DATA_MASKS;
-  DATA_MASKS = nullptr;
-}
-
-void CBC_QRDataMask::Destroy() {
-  for (int32_t i = 0; i < N_DATA_MASKS; ++i)
-    delete (*DATA_MASKS)[i];
-}
-
-void CBC_QRDataMask::UnmaskBitMatrix(CBC_CommonBitMatrix* bits,
-                                     int32_t dimension) {
-  for (int32_t i = 0; i < dimension; i++) {
-    for (int32_t j = 0; j < dimension; j++) {
-      if (IsMasked(i, j))
-        bits->Flip(j, i);
-    }
-  }
-}
-
-CBC_QRDataMask* CBC_QRDataMask::ForReference(int32_t reference, int32_t& e) {
-  if (reference < 0 || reference > 7) {
-    e = BCExceptionReferenceMustBeBetween0And7;
-    BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  }
-  return (*DATA_MASKS)[reference];
-}
-
-class DataMask000 : public CBC_QRDataMask {
- public:
-  // CBC_QRDataMask
-  FX_BOOL IsMasked(int32_t x, int32_t y) override;
-};
-
-class DataMask001 : public CBC_QRDataMask {
- public:
-  // CBC_QRDataMask
-  FX_BOOL IsMasked(int32_t x, int32_t y) override;
-};
-
-class DataMask010 : public CBC_QRDataMask {
- public:
-  // CBC_QRDataMask
-  FX_BOOL IsMasked(int32_t x, int32_t y) override;
-};
-
-class DataMask011 : public CBC_QRDataMask {
- public:
-  // CBC_QRDataMask
-  FX_BOOL IsMasked(int32_t x, int32_t y) override;
-};
-
-class DataMask100 : public CBC_QRDataMask {
- public:
-  // CBC_QRDataMask
-  FX_BOOL IsMasked(int32_t x, int32_t y) override;
-};
-
-class DataMask101 : public CBC_QRDataMask {
- public:
-  // CBC_QRDataMask
-  FX_BOOL IsMasked(int32_t x, int32_t y) override;
-};
-
-class DataMask110 : public CBC_QRDataMask {
- public:
-  // CBC_QRDataMask
-  FX_BOOL IsMasked(int32_t x, int32_t y) override;
-};
-
-class DataMask111 : public CBC_QRDataMask {
- public:
-  // CBC_QRDataMask
-  FX_BOOL IsMasked(int32_t x, int32_t y) override;
-};
-
-int32_t CBC_QRDataMask::BuildDataMasks() {
-  DATA_MASKS->Add(new DataMask000);
-  DATA_MASKS->Add(new DataMask001);
-  DATA_MASKS->Add(new DataMask010);
-  DATA_MASKS->Add(new DataMask011);
-  DATA_MASKS->Add(new DataMask100);
-  DATA_MASKS->Add(new DataMask101);
-  DATA_MASKS->Add(new DataMask110);
-  DATA_MASKS->Add(new DataMask111);
-  return DATA_MASKS->GetSize();
-}
-
-CBC_QRDataMask::CBC_QRDataMask() {}
-
-CBC_QRDataMask::~CBC_QRDataMask() {}
-
-FX_BOOL DataMask000::IsMasked(int32_t x, int32_t y) {
-  return ((x + y) % 2) == 0;
-}
-
-FX_BOOL DataMask001::IsMasked(int32_t x, int32_t y) {
-  return (x % 2) == 0;
-}
-
-FX_BOOL DataMask010::IsMasked(int32_t x, int32_t y) {
-  return y % 3 == 0;
-}
-
-FX_BOOL DataMask011::IsMasked(int32_t x, int32_t y) {
-  return (x + y) % 3 == 0;
-}
-
-FX_BOOL DataMask100::IsMasked(int32_t x, int32_t y) {
-  return (((x >> 1) + (y / 3)) % 2) == 0;
-}
-
-FX_BOOL DataMask101::IsMasked(int32_t x, int32_t y) {
-  size_t temp = x * y;
-  return (temp % 2) + (temp % 3) == 0;
-}
-
-FX_BOOL DataMask110::IsMasked(int32_t x, int32_t y) {
-  size_t temp = x * y;
-  return (((temp % 2) + (temp % 3)) % 2) == 0;
-}
-
-FX_BOOL DataMask111::IsMasked(int32_t x, int32_t y) {
-  return ((((x + y) % 2) + ((x * y) % 3)) % 2) == 0;
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRDataMask.h b/xfa/fxbarcode/qrcode/BC_QRDataMask.h
deleted file mode 100644
index dc8cf498b3..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRDataMask.h
+++ /dev/null
@@ -1,29 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRDATAMASK_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRDATAMASK_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CBC_CommonBitMatrix;
-
-class CBC_QRDataMask {
- public:
-  CBC_QRDataMask();
-  virtual ~CBC_QRDataMask();
-
-  static void Initialize();
-  static void Finalize();
-  static CBC_QRDataMask* ForReference(int32_t reference, int32_t& e);
-  static int32_t BuildDataMasks();
-  static void Destroy();
-
-  virtual FX_BOOL IsMasked(int32_t i, int32_t j) = 0;
-  void UnmaskBitMatrix(CBC_CommonBitMatrix* bits, int32_t dimension);
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRDATAMASK_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.cpp b/xfa/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.cpp
deleted file mode 100644
index 062b326bd7..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.cpp
+++ /dev/null
@@ -1,273 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/BC_UtilCodingConvert.h"
-#include "xfa/fxbarcode/common/BC_CommonBitSource.h"
-#include "xfa/fxbarcode/common/BC_CommonCharacterSetECI.h"
-#include "xfa/fxbarcode/common/BC_CommonDecoderResult.h"
-#include "xfa/fxbarcode/common/BC_CommonECI.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderMode.h"
-#include "xfa/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.h"
-
-const FX_CHAR* CBC_QRDecodedBitStreamParser::UTF_8 = "utf8";
-const FX_CHAR CBC_QRDecodedBitStreamParser::ALPHANUMERIC_CHARS[45] = {
-    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E',
-    'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
-    'U', 'V', 'W', 'X', 'Y', 'Z', ' ', '$', '%', '*', '+', '-', '.', '/', ':'};
-
-CBC_QRDecodedBitStreamParser::CBC_QRDecodedBitStreamParser() {}
-CBC_QRDecodedBitStreamParser::~CBC_QRDecodedBitStreamParser() {}
-CBC_CommonDecoderResult* CBC_QRDecodedBitStreamParser::Decode(
-    CFX_ByteArray* bytes,
-    CBC_QRCoderVersion* version,
-    CBC_QRCoderErrorCorrectionLevel* ecLevel,
-    int32_t byteModeDecode,
-    int32_t& e) {
-  CBC_CommonBitSource bits(bytes);
-  CFX_ByteString result;
-  CBC_CommonCharacterSetECI* currentCharacterSetECI = nullptr;
-  FX_BOOL fc1Infact = FALSE;
-  CFX_Int32Array byteSegments;
-  CBC_QRCoderMode* mode = nullptr;
-  do {
-    if (bits.Available() < 4) {
-      mode = CBC_QRCoderMode::sTERMINATOR;
-    } else {
-      int32_t iTemp1 = bits.ReadBits(4, e);
-      BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-      mode = CBC_QRCoderMode::ForBits(iTemp1, e);
-      BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-      if (!mode) {
-        e = BCExceptionUnSupportMode;
-        BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-      }
-    }
-    if (!(mode == CBC_QRCoderMode::sTERMINATOR)) {
-      if (mode == CBC_QRCoderMode::sFNC1_FIRST_POSITION ||
-          mode == CBC_QRCoderMode::sFNC1_SECOND_POSITION) {
-        fc1Infact = TRUE;
-      } else if (mode == CBC_QRCoderMode::sSTRUCTURED_APPEND) {
-        bits.ReadBits(16, e);
-        BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-      } else if (mode == CBC_QRCoderMode::sECI) {
-        int32_t value = ParseECIValue(&bits, e);
-        BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-        currentCharacterSetECI =
-            CBC_CommonCharacterSetECI::GetCharacterSetECIByValue(value);
-      } else {
-        if (mode == CBC_QRCoderMode::sGBK) {
-          bits.ReadBits(4, e);
-          BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-        }
-        int32_t numBits = mode->GetCharacterCountBits(version, e);
-        BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-        int32_t count = bits.ReadBits(numBits, e);
-        BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-        if (mode == CBC_QRCoderMode::sNUMERIC) {
-          DecodeNumericSegment(&bits, result, count, e);
-          BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-        } else if (mode == CBC_QRCoderMode::sALPHANUMERIC) {
-          DecodeAlphanumericSegment(&bits, result, count, fc1Infact, e);
-          BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-        } else if (mode == CBC_QRCoderMode::sBYTE) {
-          DecodeByteSegment(&bits, result, count, currentCharacterSetECI,
-                            &byteSegments, byteModeDecode, e);
-          BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-        } else if (mode == CBC_QRCoderMode::sGBK) {
-          DecodeGBKSegment(&bits, result, count, e);
-          BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-        } else if (mode == CBC_QRCoderMode::sKANJI) {
-          DecodeKanjiSegment(&bits, result, count, e);
-          BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-        } else {
-          e = BCExceptionUnSupportMode;
-          BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-        }
-      }
-    }
-  } while (!(mode == CBC_QRCoderMode::sTERMINATOR));
-  CBC_CommonDecoderResult* tempCd = new CBC_CommonDecoderResult();
-  tempCd->Init(*bytes, result, byteSegments, ecLevel, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return tempCd;
-}
-void CBC_QRDecodedBitStreamParser::DecodeGBKSegment(CBC_CommonBitSource* bits,
-                                                    CFX_ByteString& result,
-                                                    int32_t count,
-                                                    int32_t& e) {
-  CFX_ByteString buffer;
-  while (count > 0) {
-    int32_t twoBytes = bits->ReadBits(13, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    int32_t assembledTwoBytes = ((twoBytes / 0x060) << 8) | (twoBytes % 0x060);
-    if (assembledTwoBytes <= 0x0095d) {
-      assembledTwoBytes += 0x0a1a1;
-    } else {
-      assembledTwoBytes += 0x0a6a1;
-    }
-    buffer += (uint8_t)(assembledTwoBytes >> 8);
-    buffer += (uint8_t)assembledTwoBytes;
-    count--;
-  }
-  CBC_UtilCodingConvert::LocaleToUtf8(buffer, result);
-}
-void CBC_QRDecodedBitStreamParser::DecodeKanjiSegment(CBC_CommonBitSource* bits,
-                                                      CFX_ByteString& result,
-                                                      int32_t count,
-                                                      int32_t& e) {
-  CFX_ByteString buffer;
-  while (count > 0) {
-    int32_t twoBytes = bits->ReadBits(13, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    int32_t assembledTwoBytes = ((twoBytes / 0x0c0) << 8) | (twoBytes % 0x0c0);
-    if (assembledTwoBytes <= 0x01f00) {
-      assembledTwoBytes += 0x08140;
-    } else {
-      assembledTwoBytes += 0x0c140;
-    }
-    buffer += (uint8_t)(assembledTwoBytes >> 8);
-    buffer += (uint8_t)assembledTwoBytes;
-    count--;
-  }
-  CBC_UtilCodingConvert::LocaleToUtf8(buffer, result);
-}
-void CBC_QRDecodedBitStreamParser::DecodeByteSegment(
-    CBC_CommonBitSource* bits,
-    CFX_ByteString& result,
-    int32_t count,
-    CBC_CommonCharacterSetECI* currentCharacterSetECI,
-    CFX_Int32Array* byteSegments,
-    int32_t byteModeDecode,
-    int32_t& e) {
-  if (count < 0) {
-    e = BCExceptionNotFound;
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-  }
-  if ((count << 3) > bits->Available()) {
-    e = BCExceptionRead;
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-  }
-  uint8_t* readBytes = FX_Alloc(uint8_t, count);
-  FXSYS_memset(readBytes, 0x00, count);
-  for (int32_t i = 0; i < count; i++) {
-    readBytes[i] = (uint8_t)bits->ReadBits(8, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-  }
-  CFX_ByteString bs(readBytes, count);
-  result += bs;
-  FX_Free(readBytes);
-}
-void CBC_QRDecodedBitStreamParser::DecodeAlphanumericSegment(
-    CBC_CommonBitSource* bits,
-    CFX_ByteString& result,
-    int32_t count,
-    FX_BOOL fac1InEffect,
-    int32_t& e) {
-  int32_t start = result.GetLength();
-  while (count > 1) {
-    int32_t nextTwoCharsBits = bits->ReadBits(11, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    BC_FX_ByteString_Append(result, 1,
-                            ALPHANUMERIC_CHARS[nextTwoCharsBits / 45]);
-    BC_FX_ByteString_Append(result, 1,
-                            ALPHANUMERIC_CHARS[nextTwoCharsBits % 45]);
-    count -= 2;
-  }
-  if (count == 1) {
-    int32_t itemp = bits->ReadBits(6, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[itemp]);
-  }
-  if (fac1InEffect) {
-    for (int32_t i = start; i < result.GetLength(); i++) {
-      if (result[i] == '%') {
-        if ((i < result.GetLength() - 1) && result[i + 1] == '%') {
-          result.Delete(i + 1, 1);
-        } else {
-          result.SetAt(i, (FX_CHAR)0x1d);
-        }
-      }
-    }
-  }
-}
-void CBC_QRDecodedBitStreamParser::DecodeNumericSegment(
-    CBC_CommonBitSource* bits,
-    CFX_ByteString& result,
-    int32_t count,
-    int32_t& e) {
-  while (count >= 3) {
-    int32_t threeDigitsBits = bits->ReadBits(10, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    if (threeDigitsBits >= 1000) {
-      e = BCExceptionRead;
-      BC_EXCEPTION_CHECK_ReturnVoid(e);
-    }
-    BC_FX_ByteString_Append(result, 1,
-                            ALPHANUMERIC_CHARS[threeDigitsBits / 100]);
-    BC_FX_ByteString_Append(result, 1,
-                            ALPHANUMERIC_CHARS[(threeDigitsBits / 10) % 10]);
-    BC_FX_ByteString_Append(result, 1,
-                            ALPHANUMERIC_CHARS[threeDigitsBits % 10]);
-    count -= 3;
-  }
-  if (count == 2) {
-    int32_t twoDigitBits = bits->ReadBits(7, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    if (twoDigitBits >= 100) {
-      e = BCExceptionRead;
-      BC_EXCEPTION_CHECK_ReturnVoid(e);
-    }
-    BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[twoDigitBits / 10]);
-    BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[twoDigitBits % 10]);
-  } else if (count == 1) {
-    int32_t digitBits = bits->ReadBits(4, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    if (digitBits >= 10) {
-      e = BCExceptionRead;
-      BC_EXCEPTION_CHECK_ReturnVoid(e);
-    }
-    BC_FX_ByteString_Append(result, 1, ALPHANUMERIC_CHARS[digitBits]);
-  }
-}
-const CFX_ByteString CBC_QRDecodedBitStreamParser::GuessEncoding(
-    CFX_ByteArray* bytes) {
-  return *UTF_8;
-}
-int32_t CBC_QRDecodedBitStreamParser::ParseECIValue(CBC_CommonBitSource* bits,
-                                                    int32_t& e) {
-  int32_t firstByte = bits->ReadBits(8, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, 0);
-  if ((firstByte & 0x80) == 0) {
-    return firstByte & 0x7f;
-  } else if ((firstByte & 0xc0) == 0x80) {
-    int32_t secondByte = bits->ReadBits(8, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, 0);
-    return ((firstByte & 0x3f) << 8) | secondByte;
-  } else if ((firstByte & 0xe0) == 0xc0) {
-    int32_t secondThirdByte = bits->ReadBits(16, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, 0);
-    return ((firstByte & 0x1f) << 16) | secondThirdByte;
-  }
-  e = BCExceptionBadECI;
-  BC_EXCEPTION_CHECK_ReturnValue(e, 0);
-  return 0;
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.h b/xfa/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.h
deleted file mode 100644
index 0943bc0a4e..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRDecodedBitStreamParser.h
+++ /dev/null
@@ -1,59 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRDECODEDBITSTREAMPARSER_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRDECODEDBITSTREAMPARSER_H_
-
-class CBC_CommonDecoderResult;
-class CBC_QRCoderErrorCorrectionLevel;
-class CBC_CommonBitSource;
-class CBC_QRCoderVersion;
-class CBC_CommonCharacterSetECI;
-class CBC_QRDecodedBitStreamParser {
- private:
-  static const FX_CHAR ALPHANUMERIC_CHARS[45];
-  static const FX_CHAR* UTF_8;
-  CBC_QRDecodedBitStreamParser();
-
- public:
-  virtual ~CBC_QRDecodedBitStreamParser();
-  static CBC_CommonDecoderResult* Decode(
-      CFX_ByteArray* bytes,
-      CBC_QRCoderVersion* version,
-      CBC_QRCoderErrorCorrectionLevel* ecLevel,
-      int32_t byteModeDecode,
-      int32_t& e);
-
-  static const CFX_ByteString GuessEncoding(CFX_ByteArray* bytes);
-  static int32_t ParseECIValue(CBC_CommonBitSource* bits, int32_t& e);
-  static void DecodeGBKSegment(CBC_CommonBitSource* bits,
-                               CFX_ByteString& result,
-                               int32_t count,
-                               int32_t& e);
-  static void DecodeKanjiSegment(CBC_CommonBitSource* bits,
-                                 CFX_ByteString& result,
-                                 int32_t count,
-                                 int32_t& e);
-  static void DecodeNumericSegment(CBC_CommonBitSource* bits,
-                                   CFX_ByteString& result,
-                                   int32_t count,
-                                   int32_t& e);
-  static void DecodeAlphanumericSegment(CBC_CommonBitSource* bits,
-                                        CFX_ByteString& result,
-                                        int32_t count,
-                                        FX_BOOL fac1InEffect,
-                                        int32_t& e);
-  static void DecodeByteSegment(
-      CBC_CommonBitSource* bits,
-      CFX_ByteString& result,
-      int32_t count,
-      CBC_CommonCharacterSetECI* currentCharacterSetECI,
-      CFX_Int32Array* byteSegments,
-      int32_t byteModeDecode,
-      int32_t& e);
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRDECODEDBITSTREAMPARSER_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRDetector.cpp b/xfa/fxbarcode/qrcode/BC_QRDetector.cpp
deleted file mode 100644
index a5be32a232..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRDetector.cpp
+++ /dev/null
@@ -1,278 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/qrcode/BC_QRDetector.h"
-
-#include <algorithm>
-#include <memory>
-
-#include "xfa/fxbarcode/BC_ResultPoint.h"
-#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
-#include "xfa/fxbarcode/qrcode/BC_FinderPatternInfo.h"
-#include "xfa/fxbarcode/qrcode/BC_QRAlignmentPattern.h"
-#include "xfa/fxbarcode/qrcode/BC_QRAlignmentPatternFinder.h"
-#include "xfa/fxbarcode/qrcode/BC_QRCoderVersion.h"
-#include "xfa/fxbarcode/qrcode/BC_QRDetectorResult.h"
-#include "xfa/fxbarcode/qrcode/BC_QRFinderPattern.h"
-#include "xfa/fxbarcode/qrcode/BC_QRFinderPatternFinder.h"
-#include "xfa/fxbarcode/qrcode/BC_QRGridSampler.h"
-
-CBC_QRDetector::CBC_QRDetector(CBC_CommonBitMatrix* image) : m_image(image) {}
-CBC_QRDetector::~CBC_QRDetector() {}
-CBC_QRDetectorResult* CBC_QRDetector::Detect(int32_t hints, int32_t& e) {
-  CBC_QRFinderPatternFinder finder(m_image);
-  std::unique_ptr<CBC_QRFinderPatternInfo> info(finder.Find(hints, e));
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  CBC_QRDetectorResult* qdr = ProcessFinderPatternInfo(info.get(), e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return qdr;
-}
-CBC_QRDetectorResult* CBC_QRDetector::ProcessFinderPatternInfo(
-    CBC_QRFinderPatternInfo* info,
-    int32_t& e) {
-  std::unique_ptr<CBC_QRFinderPattern> topLeft(info->GetTopLeft());
-  std::unique_ptr<CBC_QRFinderPattern> topRight(info->GetTopRight());
-  std::unique_ptr<CBC_QRFinderPattern> bottomLeft(info->GetBottomLeft());
-  FX_FLOAT moduleSize =
-      CalculateModuleSize(topLeft.get(), topRight.get(), bottomLeft.get());
-  if (moduleSize < 1.0f) {
-    e = BCExceptionRead;
-    return nullptr;
-  }
-  int32_t dimension = ComputeDimension(topLeft.get(), topRight.get(),
-                                       bottomLeft.get(), moduleSize, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  CBC_QRCoderVersion* provisionalVersion =
-      CBC_QRCoderVersion::GetProvisionalVersionForDimension(dimension, e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  int32_t modulesBetweenFPCenters =
-      provisionalVersion->GetDimensionForVersion() - 7;
-  CBC_QRAlignmentPattern* alignmentPattern = nullptr;
-  if (provisionalVersion->GetAlignmentPatternCenters()->GetSize() > 0) {
-    FX_FLOAT bottomRightX =
-        topRight->GetX() - topLeft->GetX() + bottomLeft->GetX();
-    FX_FLOAT bottomRightY =
-        topRight->GetY() - topLeft->GetY() + bottomLeft->GetY();
-    FX_FLOAT correctionToTopLeft =
-        1.0f - 3.0f / (FX_FLOAT)modulesBetweenFPCenters;
-    FX_FLOAT xtemp = (topLeft->GetX() +
-                      correctionToTopLeft * (bottomRightX - topLeft->GetX()));
-    int32_t estAlignmentX = (int32_t)xtemp;
-    FX_FLOAT ytemp = (topLeft->GetY() +
-                      correctionToTopLeft * (bottomRightY - topLeft->GetY()));
-    int32_t estAlignmentY = (int32_t)ytemp;
-    for (int32_t i = 4; i <= 16; i <<= 1) {
-      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(),
-                 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);
-}
-CBC_CommonBitMatrix* CBC_QRDetector::SampleGrid(
-    CBC_CommonBitMatrix* image,
-    CBC_ResultPoint* topLeft,
-    CBC_ResultPoint* topRight,
-    CBC_ResultPoint* bottomLeft,
-    CBC_ResultPoint* alignmentPattern,
-    int32_t dimension,
-    int32_t& e) {
-  FX_FLOAT dimMinusThree = (FX_FLOAT)dimension - 3.5f;
-  FX_FLOAT bottomRightX;
-  FX_FLOAT bottomRightY;
-  FX_FLOAT sourceBottomRightX;
-  FX_FLOAT sourceBottomRightY;
-  if (alignmentPattern) {
-    bottomRightX = alignmentPattern->GetX();
-    bottomRightY = alignmentPattern->GetY();
-    sourceBottomRightX = sourceBottomRightY = dimMinusThree - 3.0f;
-  } else {
-    bottomRightX = (topRight->GetX() - topLeft->GetX()) + bottomLeft->GetX();
-    bottomRightY = (topRight->GetY() - topLeft->GetY()) + bottomLeft->GetY();
-    sourceBottomRightX = sourceBottomRightY = dimMinusThree;
-  }
-  CBC_QRGridSampler& sampler = CBC_QRGridSampler::GetInstance();
-  CBC_CommonBitMatrix* cbm = sampler.SampleGrid(
-      image, dimension, dimension, 3.5f, 3.5f, dimMinusThree, 3.5f,
-      sourceBottomRightX, sourceBottomRightY, 3.5f, dimMinusThree,
-      topLeft->GetX(), topLeft->GetY(), topRight->GetX(), topRight->GetY(),
-      bottomRightX, bottomRightY, bottomLeft->GetX(), bottomLeft->GetY(), e);
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  return cbm;
-}
-int32_t CBC_QRDetector::ComputeDimension(CBC_ResultPoint* topLeft,
-                                         CBC_ResultPoint* topRight,
-                                         CBC_ResultPoint* bottomLeft,
-                                         FX_FLOAT moduleSize,
-                                         int32_t& e) {
-  int32_t tltrCentersDimension = Round(
-      CBC_QRFinderPatternFinder::Distance(topLeft, topRight) / moduleSize);
-  int32_t tlblCentersDimension = Round(
-      CBC_QRFinderPatternFinder::Distance(topLeft, bottomLeft) / moduleSize);
-  int32_t dimension = ((tltrCentersDimension + tlblCentersDimension) >> 1) + 7;
-  switch (dimension & 0x03) {
-    case 0:
-      dimension++;
-      break;
-    case 2:
-      dimension--;
-      break;
-    case 3: {
-      e = BCExceptionRead;
-      BC_EXCEPTION_CHECK_ReturnValue(e, 0);
-    }
-  }
-  return dimension;
-}
-FX_FLOAT CBC_QRDetector::CalculateModuleSize(CBC_ResultPoint* topLeft,
-                                             CBC_ResultPoint* topRight,
-                                             CBC_ResultPoint* bottomLeft) {
-  return (CalculateModuleSizeOneWay(topLeft, topRight) +
-          CalculateModuleSizeOneWay(topLeft, bottomLeft)) /
-         2.0f;
-}
-FX_FLOAT CBC_QRDetector::CalculateModuleSizeOneWay(
-    CBC_ResultPoint* pattern,
-    CBC_ResultPoint* otherPattern) {
-  FX_FLOAT moduleSizeEst1 = SizeOfBlackWhiteBlackRunBothWays(
-      (int32_t)pattern->GetX(), (int32_t)pattern->GetY(),
-      (int32_t)otherPattern->GetX(), (int32_t)otherPattern->GetY());
-  FX_FLOAT moduleSizeEst2 = SizeOfBlackWhiteBlackRunBothWays(
-      (int32_t)otherPattern->GetX(), (int32_t)otherPattern->GetY(),
-      (int32_t)pattern->GetX(), (int32_t)pattern->GetY());
-  if (FXSYS_isnan(moduleSizeEst1)) {
-    return moduleSizeEst2;
-  }
-  if (FXSYS_isnan(moduleSizeEst2)) {
-    return moduleSizeEst1;
-  }
-  return (moduleSizeEst1 + moduleSizeEst2) / 14.0f;
-}
-int32_t CBC_QRDetector::Round(FX_FLOAT d) {
-  return (int32_t)(d + 0.5f);
-}
-FX_FLOAT CBC_QRDetector::SizeOfBlackWhiteBlackRunBothWays(int32_t fromX,
-                                                          int32_t fromY,
-                                                          int32_t toX,
-                                                          int32_t toY) {
-  FX_FLOAT result = SizeOfBlackWhiteBlackRun(fromX, fromY, toX, toY);
-  int32_t otherToX = fromX - (toX - fromX);
-  if (otherToX < 0) {
-    otherToX = -1;
-  } else if (otherToX >= m_image->GetWidth()) {
-    otherToX = m_image->GetWidth();
-  }
-  int32_t otherToY = fromY - (toY - fromY);
-  if (otherToY < 0) {
-    otherToY = -1;
-  } else if (otherToY >= m_image->GetHeight()) {
-    otherToY = m_image->GetHeight();
-  }
-  result += SizeOfBlackWhiteBlackRun(fromX, fromY, otherToX, otherToY);
-  return result - 1.0f;
-}
-FX_FLOAT CBC_QRDetector::SizeOfBlackWhiteBlackRun(int32_t fromX,
-                                                  int32_t fromY,
-                                                  int32_t toX,
-                                                  int32_t toY) {
-  FX_BOOL steep = FXSYS_abs(toY - fromY) > FXSYS_abs(toX - fromX);
-  if (steep) {
-    int32_t temp = fromX;
-    fromX = fromY;
-    fromY = temp;
-    temp = toX;
-    toX = toY;
-    toY = temp;
-  }
-  int32_t dx = FXSYS_abs(toX - fromX);
-  int32_t dy = FXSYS_abs(toY - fromY);
-  int32_t error = -dx >> 1;
-  int32_t ystep = fromY < toY ? 1 : -1;
-  int32_t xstep = fromX < toX ? 1 : -1;
-  int32_t state = 0;
-  for (int32_t x = fromX, y = fromY; x != toX; x += xstep) {
-    int32_t realX = steep ? y : x;
-    int32_t realY = steep ? x : y;
-    if (state == 1) {
-      if (m_image->Get(realX, realY)) {
-        state++;
-      }
-    } else {
-      if (!m_image->Get(realX, realY)) {
-        state++;
-      }
-    }
-    if (state == 3) {
-      int32_t diffX = x - fromX;
-      int32_t diffY = y - fromY;
-      return (FX_FLOAT)sqrt((double)(diffX * diffX + diffY * diffY));
-    }
-    error += dy;
-    if (error > 0) {
-      y += ystep;
-      error -= dx;
-    }
-  }
-  int32_t diffX = toX - fromX;
-  int32_t diffY = toY - fromY;
-  return (FX_FLOAT)sqrt((double)(diffX * diffX + diffY * diffY));
-}
-CBC_QRAlignmentPattern* CBC_QRDetector::FindAlignmentInRegion(
-    FX_FLOAT overallEstModuleSize,
-    int32_t estAlignmentX,
-    int32_t estAlignmentY,
-    FX_FLOAT allowanceFactor,
-    int32_t& e) {
-  int32_t allowance = (int32_t)(allowanceFactor * overallEstModuleSize);
-  int32_t alignmentAreaLeftX = std::max(0, estAlignmentX - allowance);
-  int32_t alignmentAreaRightX =
-      std::min(m_image->GetWidth() - 1, estAlignmentX + allowance);
-  if (alignmentAreaRightX - alignmentAreaLeftX < overallEstModuleSize * 3) {
-    e = BCExceptionRead;
-    BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  }
-  int32_t alignmentAreaTopY = std::max(0, estAlignmentY - allowance);
-  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;
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRDetector.h b/xfa/fxbarcode/qrcode/BC_QRDetector.h
deleted file mode 100644
index 91eed25415..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRDetector.h
+++ /dev/null
@@ -1,63 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRDETECTOR_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRDETECTOR_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CBC_ResultPoint;
-class CBC_CommonBitMatrix;
-class CBC_QRDetectorResult;
-class CBC_QRFinderPatternInfo;
-class CBC_QRAlignmentPattern;
-
-class CBC_QRDetector {
- private:
-  CBC_CommonBitMatrix* m_image;
-
- public:
-  CBC_QRDetector(CBC_CommonBitMatrix* image);
-  virtual ~CBC_QRDetector();
-
-  CBC_CommonBitMatrix* GetImage();
-  CBC_QRDetectorResult* Detect(int32_t hints, int32_t& e);
-  CBC_QRDetectorResult* ProcessFinderPatternInfo(CBC_QRFinderPatternInfo* info,
-                                                 int32_t& e);
-  FX_FLOAT CalculateModuleSize(CBC_ResultPoint* topLeft,
-                               CBC_ResultPoint* topRight,
-                               CBC_ResultPoint* bottomLeft);
-  FX_FLOAT CalculateModuleSizeOneWay(CBC_ResultPoint* pattern,
-                                     CBC_ResultPoint* otherPattern);
-  FX_FLOAT SizeOfBlackWhiteBlackRunBothWays(int32_t fromX,
-                                            int32_t fromY,
-                                            int32_t toX,
-                                            int32_t toY);
-  FX_FLOAT SizeOfBlackWhiteBlackRun(int32_t fromX,
-                                    int32_t fromY,
-                                    int32_t toX,
-                                    int32_t toY);
-  CBC_QRAlignmentPattern* FindAlignmentInRegion(FX_FLOAT overallEstModuleSize,
-                                                int32_t estAlignmentX,
-                                                int32_t estAlignmentY,
-                                                FX_FLOAT allowanceFactor,
-                                                int32_t& e);
-  static int32_t Round(FX_FLOAT d);
-  static int32_t ComputeDimension(CBC_ResultPoint* topLeft,
-                                  CBC_ResultPoint* topRight,
-                                  CBC_ResultPoint* bottomLeft,
-                                  FX_FLOAT moduleSize,
-                                  int32_t& e);
-  static CBC_CommonBitMatrix* SampleGrid(CBC_CommonBitMatrix* image,
-                                         CBC_ResultPoint* topLeft,
-                                         CBC_ResultPoint* topRight,
-                                         CBC_ResultPoint* bottomLeft,
-                                         CBC_ResultPoint* alignmentPattern,
-                                         int32_t dimension,
-                                         int32_t& e);
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRDETECTOR_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRDetectorResult.cpp b/xfa/fxbarcode/qrcode/BC_QRDetectorResult.cpp
deleted file mode 100644
index 5ce2e75762..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRDetectorResult.cpp
+++ /dev/null
@@ -1,43 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/BC_ResultPoint.h"
-#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
-#include "xfa/fxbarcode/qrcode/BC_QRDetectorResult.h"
-
-CBC_QRDetectorResult::CBC_QRDetectorResult(
-    CBC_CommonBitMatrix* bits,
-    CFX_ArrayTemplate<CBC_ResultPoint*>* points)
-    : m_bits(bits), m_points(points) {}
-
-CBC_QRDetectorResult::~CBC_QRDetectorResult() {
-  for (int32_t i = 0; i < m_points->GetSize(); i++)
-    delete (*m_points)[i];
-}
-
-CBC_CommonBitMatrix* CBC_QRDetectorResult::GetBits() const {
-  return m_bits.get();
-}
-
-CFX_ArrayTemplate<CBC_ResultPoint*>* CBC_QRDetectorResult::GetPoints() const {
-  return m_points.get();
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRDetectorResult.h b/xfa/fxbarcode/qrcode/BC_QRDetectorResult.h
deleted file mode 100644
index 5948c2a01c..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRDetectorResult.h
+++ /dev/null
@@ -1,32 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRDETECTORRESULT_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRDETECTORRESULT_H_
-
-#include <memory>
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CBC_CommonBitMatrix;
-class CBC_ResultPoint;
-
-class CBC_QRDetectorResult final {
- public:
-  // Takes ownership of |bits| and |points|.
-  CBC_QRDetectorResult(CBC_CommonBitMatrix* bits,
-                       CFX_ArrayTemplate<CBC_ResultPoint*>* points);
-  ~CBC_QRDetectorResult();
-
-  CBC_CommonBitMatrix* GetBits() const;
-  CFX_ArrayTemplate<CBC_ResultPoint*>* GetPoints() const;
-
- private:
-  std::unique_ptr<CBC_CommonBitMatrix> m_bits;
-  std::unique_ptr<CFX_ArrayTemplate<CBC_ResultPoint*>> m_points;
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRDETECTORRESULT_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRFinderPattern.cpp b/xfa/fxbarcode/qrcode/BC_QRFinderPattern.cpp
deleted file mode 100644
index 1bc9648835..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRFinderPattern.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/BC_ResultPoint.h"
-#include "xfa/fxbarcode/qrcode/BC_QRFinderPattern.h"
-
-CBC_QRFinderPattern::CBC_QRFinderPattern(FX_FLOAT x,
-                                         FX_FLOAT posY,
-                                         FX_FLOAT estimatedModuleSize)
-    : CBC_ResultPoint(x, posY),
-      m_estimatedModuleSize(estimatedModuleSize),
-      m_count(1) {}
-CBC_QRFinderPattern::~CBC_QRFinderPattern() {
-  m_count = 0;
-  m_x = 0.0f;
-  m_y = 0.0f;
-  m_estimatedModuleSize = 0.0f;
-}
-CBC_QRFinderPattern* CBC_QRFinderPattern::Clone() {
-  CBC_QRFinderPattern* temp =
-      new CBC_QRFinderPattern(m_x, m_y, m_estimatedModuleSize);
-  temp->m_count = m_count;
-  return temp;
-}
-FX_FLOAT CBC_QRFinderPattern::GetEstimatedModuleSize() {
-  return m_estimatedModuleSize;
-}
-int32_t CBC_QRFinderPattern::GetCount() const {
-  return m_count;
-}
-void CBC_QRFinderPattern::IncrementCount() {
-  m_count++;
-}
-FX_BOOL CBC_QRFinderPattern::AboutEquals(FX_FLOAT moduleSize,
-                                         FX_FLOAT i,
-                                         FX_FLOAT j) {
-  if ((fabs(i - GetY()) <= moduleSize) && (fabs(j - GetX()) <= moduleSize)) {
-    FX_FLOAT moduleSizeDiff = fabs(moduleSize - m_estimatedModuleSize);
-    return (moduleSizeDiff <= 1.0f) ||
-           (moduleSizeDiff / m_estimatedModuleSize <= 1.0f);
-  }
-  return false;
-}
-FX_FLOAT CBC_QRFinderPattern::GetX() {
-  return m_x;
-}
-FX_FLOAT CBC_QRFinderPattern::GetY() {
-  return m_y;
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRFinderPattern.h b/xfa/fxbarcode/qrcode/BC_QRFinderPattern.h
deleted file mode 100644
index f02a229121..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRFinderPattern.h
+++ /dev/null
@@ -1,33 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRFINDERPATTERN_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRFINDERPATTERN_H_
-
-class CBC_ResultPoint;
-class CBC_QRFinderPattern;
-class CBC_QRFinderPattern : public CBC_ResultPoint {
- private:
-  FX_FLOAT m_estimatedModuleSize;
-  int32_t m_count;
-
- public:
-  CBC_QRFinderPattern(FX_FLOAT x, FX_FLOAT posY, FX_FLOAT estimatedModuleSize);
-  ~CBC_QRFinderPattern() override;
-
-  // CBC_ResultPoint
-  FX_FLOAT GetX() override;
-  FX_FLOAT GetY() override;
-
-  int32_t GetCount() const;
-  FX_FLOAT GetEstimatedModuleSize();
-  void IncrementCount();
-  FX_BOOL AboutEquals(FX_FLOAT moduleSize, FX_FLOAT i, FX_FLOAT j);
-  CBC_QRFinderPattern* Clone();
-};
-typedef CBC_QRFinderPattern FinderPattern;
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRFINDERPATTERN_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRFinderPatternFinder.cpp b/xfa/fxbarcode/qrcode/BC_QRFinderPatternFinder.cpp
deleted file mode 100644
index 5ceeefac53..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRFinderPatternFinder.cpp
+++ /dev/null
@@ -1,481 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/qrcode/BC_QRFinderPatternFinder.h"
-
-#include <memory>
-
-#include "core/fxcrt/include/fx_basic.h"
-#include "xfa/fxbarcode/BC_ResultPoint.h"
-#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
-#include "xfa/fxbarcode/qrcode/BC_FinderPatternInfo.h"
-#include "xfa/fxbarcode/qrcode/BC_QRFinderPattern.h"
-#include "xfa/fxbarcode/utils.h"
-
-const int32_t CBC_QRFinderPatternFinder::CENTER_QUORUM = 2;
-const int32_t CBC_QRFinderPatternFinder::MIN_SKIP = 3;
-const int32_t CBC_QRFinderPatternFinder::MAX_MODULES = 57;
-const int32_t CBC_QRFinderPatternFinder::INTEGER_MATH_SHIFT = 8;
-
-CBC_QRFinderPatternFinder::CBC_QRFinderPatternFinder(
-    CBC_CommonBitMatrix* image) {
-  m_image = image;
-  m_crossCheckStateCount.SetSize(5);
-  m_hasSkipped = FALSE;
-}
-
-CBC_QRFinderPatternFinder::~CBC_QRFinderPatternFinder() {
-  for (int32_t i = 0; i < m_possibleCenters.GetSize(); i++)
-    delete m_possibleCenters[i];
-}
-
-class ClosestToAverageComparator {
- private:
-  FX_FLOAT m_averageModuleSize;
-
- public:
-  ClosestToAverageComparator(FX_FLOAT averageModuleSize)
-      : m_averageModuleSize(averageModuleSize) {}
-  int32_t operator()(FinderPattern* a, FinderPattern* b) {
-    FX_FLOAT dA =
-        (FX_FLOAT)fabs(a->GetEstimatedModuleSize() - m_averageModuleSize);
-    FX_FLOAT dB =
-        (FX_FLOAT)fabs(b->GetEstimatedModuleSize() - m_averageModuleSize);
-    return dA < dB ? -1 : dA > dB ? 1 : 0;
-  }
-};
-class CenterComparator {
- public:
-  int32_t operator()(FinderPattern* a, FinderPattern* b) {
-    return b->GetCount() - a->GetCount();
-  }
-};
-CBC_CommonBitMatrix* CBC_QRFinderPatternFinder::GetImage() {
-  return m_image;
-}
-CFX_Int32Array& CBC_QRFinderPatternFinder::GetCrossCheckStateCount() {
-  m_crossCheckStateCount[0] = 0;
-  m_crossCheckStateCount[1] = 0;
-  m_crossCheckStateCount[2] = 0;
-  m_crossCheckStateCount[3] = 0;
-  m_crossCheckStateCount[4] = 0;
-  return m_crossCheckStateCount;
-}
-
-CFX_ArrayTemplate<CBC_QRFinderPattern*>*
-CBC_QRFinderPatternFinder::GetPossibleCenters() {
-  return &m_possibleCenters;
-}
-
-CBC_QRFinderPatternInfo* CBC_QRFinderPatternFinder::Find(int32_t hint,
-                                                         int32_t& e) {
-  int32_t maxI = m_image->GetHeight();
-  int32_t maxJ = m_image->GetWidth();
-  int32_t iSkip = (3 * maxI) / (4 * MAX_MODULES);
-  if (iSkip < MIN_SKIP || 0) {
-    iSkip = MIN_SKIP;
-  }
-  FX_BOOL done = FALSE;
-  CFX_Int32Array stateCount;
-  stateCount.SetSize(5);
-  for (int32_t i = iSkip - 1; i < maxI && !done; i += iSkip) {
-    stateCount[0] = 0;
-    stateCount[1] = 0;
-    stateCount[2] = 0;
-    stateCount[3] = 0;
-    stateCount[4] = 0;
-    int32_t currentState = 0;
-    for (int32_t j = 0; j < maxJ; j++) {
-      if (m_image->Get(j, i)) {
-        if ((currentState & 1) == 1) {
-          currentState++;
-        }
-        stateCount[currentState]++;
-      } else {
-        if ((currentState & 1) == 0) {
-          if (currentState == 4) {
-            if (FoundPatternCross(stateCount)) {
-              FX_BOOL confirmed = HandlePossibleCenter(stateCount, i, j);
-              if (confirmed) {
-                iSkip = 2;
-                if (m_hasSkipped) {
-                  done = HaveMultiplyConfirmedCenters();
-                } else {
-                  int32_t rowSkip = FindRowSkip();
-                  if (rowSkip > stateCount[2]) {
-                    i += rowSkip - stateCount[2] - iSkip;
-                    j = maxJ - 1;
-                  }
-                }
-              } else {
-                do {
-                  j++;
-                } while (j < maxJ && !m_image->Get(j, i));
-                j--;
-              }
-              currentState = 0;
-              stateCount[0] = 0;
-              stateCount[1] = 0;
-              stateCount[2] = 0;
-              stateCount[3] = 0;
-              stateCount[4] = 0;
-            } else {
-              stateCount[0] = stateCount[2];
-              stateCount[1] = stateCount[3];
-              stateCount[2] = stateCount[4];
-              stateCount[3] = 1;
-              stateCount[4] = 0;
-              currentState = 3;
-            }
-          } else {
-            stateCount[++currentState]++;
-          }
-        } else {
-          stateCount[currentState]++;
-        }
-      }
-    }
-    if (FoundPatternCross(stateCount)) {
-      FX_BOOL confirmed = HandlePossibleCenter(stateCount, i, maxJ);
-      if (confirmed) {
-        iSkip = stateCount[0];
-        if (m_hasSkipped) {
-          done = HaveMultiplyConfirmedCenters();
-        }
-      }
-    }
-  }
-  std::unique_ptr<CFX_ArrayTemplate<CBC_QRFinderPattern*>> patternInfo(
-      SelectBestpatterns(e));
-  BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  OrderBestPatterns(patternInfo.get());
-  return new CBC_QRFinderPatternInfo(patternInfo.get());
-}
-void CBC_QRFinderPatternFinder::OrderBestPatterns(
-    CFX_ArrayTemplate<CBC_QRFinderPattern*>* patterns) {
-  FX_FLOAT abDistance = Distance((*patterns)[0], (*patterns)[1]);
-  FX_FLOAT bcDistance = Distance((*patterns)[1], (*patterns)[2]);
-  FX_FLOAT acDistance = Distance((*patterns)[0], (*patterns)[2]);
-  CBC_QRFinderPattern* topLeft;
-  CBC_QRFinderPattern* topRight;
-  CBC_QRFinderPattern* bottomLeft;
-  if (bcDistance >= abDistance && bcDistance >= acDistance) {
-    topLeft = (*patterns)[0];
-    topRight = (*patterns)[1];
-    bottomLeft = (*patterns)[2];
-  } else if (acDistance >= bcDistance && acDistance >= abDistance) {
-    topLeft = (*patterns)[1];
-    topRight = (*patterns)[0];
-    bottomLeft = (*patterns)[2];
-  } else {
-    topLeft = (*patterns)[2];
-    topRight = (*patterns)[0];
-    bottomLeft = (*patterns)[1];
-  }
-  if ((bottomLeft->GetY() - topLeft->GetY()) *
-          (topRight->GetX() - topLeft->GetX()) <
-      (bottomLeft->GetX() - topLeft->GetX()) *
-          (topRight->GetY() - topLeft->GetY())) {
-    CBC_QRFinderPattern* temp = topRight;
-    topRight = bottomLeft;
-    bottomLeft = temp;
-  }
-  (*patterns)[0] = bottomLeft;
-  (*patterns)[1] = topLeft;
-  (*patterns)[2] = topRight;
-}
-FX_FLOAT CBC_QRFinderPatternFinder::Distance(CBC_ResultPoint* point1,
-                                             CBC_ResultPoint* point2) {
-  FX_FLOAT dx = point1->GetX() - point2->GetX();
-  FX_FLOAT dy = point1->GetY() - point2->GetY();
-  return (FX_FLOAT)FXSYS_sqrt(dx * dx + dy * dy);
-}
-FX_FLOAT CBC_QRFinderPatternFinder::CenterFromEnd(
-    const CFX_Int32Array& stateCount,
-    int32_t end) {
-  return (FX_FLOAT)(end - stateCount[4] - stateCount[3]) - stateCount[2] / 2.0f;
-}
-FX_BOOL CBC_QRFinderPatternFinder::FoundPatternCross(
-    const CFX_Int32Array& stateCount) {
-  int32_t totalModuleSize = 0;
-  for (int32_t i = 0; i < 5; i++) {
-    int32_t count = stateCount[i];
-    if (count == 0) {
-      return FALSE;
-    }
-    totalModuleSize += count;
-  }
-  if (totalModuleSize < 7) {
-    return FALSE;
-  }
-  int32_t moduleSize = (totalModuleSize << INTEGER_MATH_SHIFT) / 7;
-  int32_t maxVariance = moduleSize / 2;
-  return FXSYS_abs(moduleSize - (stateCount[0] << INTEGER_MATH_SHIFT)) <
-             maxVariance &&
-         FXSYS_abs(moduleSize - (stateCount[1] << INTEGER_MATH_SHIFT)) <
-             maxVariance &&
-         FXSYS_abs(3 * moduleSize - (stateCount[2] << INTEGER_MATH_SHIFT)) <
-             3 * maxVariance &&
-         FXSYS_abs(moduleSize - (stateCount[3] << INTEGER_MATH_SHIFT)) <
-             maxVariance &&
-         FXSYS_abs(moduleSize - (stateCount[4] << INTEGER_MATH_SHIFT)) <
-             maxVariance;
-}
-FX_FLOAT CBC_QRFinderPatternFinder::CrossCheckVertical(
-    int32_t startI,
-    int32_t centerJ,
-    int32_t maxCount,
-    int32_t originalStateCountTotal) {
-  CBC_CommonBitMatrix* image = m_image;
-  int32_t maxI = image->GetHeight();
-  CFX_Int32Array& stateCount = GetCrossCheckStateCount();
-  int32_t i = startI;
-  while (i >= 0 && image->Get(centerJ, i)) {
-    stateCount[2]++;
-    i--;
-  }
-  if (i < 0) {
-    return FXSYS_nan();
-  }
-  while (i >= 0 && !image->Get(centerJ, i) && stateCount[1] <= maxCount) {
-    stateCount[1]++;
-    i--;
-  }
-  if (i < 0 || stateCount[1] > maxCount) {
-    return FXSYS_nan();
-  }
-  while (i >= 0 && image->Get(centerJ, i) && stateCount[0] <= maxCount) {
-    stateCount[0]++;
-    i--;
-  }
-  if (stateCount[0] > maxCount) {
-    return FXSYS_nan();
-  }
-  i = startI + 1;
-  while (i < maxI && image->Get(centerJ, i)) {
-    stateCount[2]++;
-    i++;
-  }
-  if (i == maxI) {
-    return FXSYS_nan();
-  }
-  while (i < maxI && !image->Get(centerJ, i) && stateCount[3] < maxCount) {
-    stateCount[3]++;
-    i++;
-  }
-  if (i == maxI || stateCount[3] >= maxCount) {
-    return FXSYS_nan();
-  }
-  while (i < maxI && image->Get(centerJ, i) && stateCount[4] < maxCount) {
-    stateCount[4]++;
-    i++;
-  }
-  if (stateCount[4] >= maxCount) {
-    return FXSYS_nan();
-  }
-  int32_t stateCountTotal = stateCount[0] + stateCount[1] + stateCount[2] +
-                            stateCount[3] + stateCount[4];
-  if (5 * FXSYS_abs(stateCountTotal - originalStateCountTotal) >=
-      originalStateCountTotal) {
-    return FXSYS_nan();
-  }
-  return FoundPatternCross(stateCount) ? CenterFromEnd(stateCount, i)
-                                       : FXSYS_nan();
-}
-FX_FLOAT CBC_QRFinderPatternFinder::CrossCheckHorizontal(
-    int32_t startJ,
-    int32_t centerI,
-    int32_t maxCount,
-    int32_t originalStateCountTotal) {
-  CBC_CommonBitMatrix* image = m_image;
-  int32_t maxJ = image->GetWidth();
-  CFX_Int32Array& stateCount = GetCrossCheckStateCount();
-  int32_t j = startJ;
-  while (j >= 0 && image->Get(j, centerI)) {
-    stateCount[2]++;
-    j--;
-  }
-  if (j < 0) {
-    return FXSYS_nan();
-  }
-  while (j >= 0 && !image->Get(j, centerI) && stateCount[1] <= maxCount) {
-    stateCount[1]++;
-    j--;
-  }
-  if (j < 0 || stateCount[1] > maxCount) {
-    return FXSYS_nan();
-  }
-  while (j >= 0 && image->Get(j, centerI) && stateCount[0] <= maxCount) {
-    stateCount[0]++;
-    j--;
-  }
-  if (stateCount[0] > maxCount) {
-    return FXSYS_nan();
-  }
-  j = startJ + 1;
-  while (j < maxJ && image->Get(j, centerI)) {
-    stateCount[2]++;
-    j++;
-  }
-  if (j == maxJ) {
-    return FXSYS_nan();
-  }
-  while (j < maxJ && !image->Get(j, centerI) && stateCount[3] < maxCount) {
-    stateCount[3]++;
-    j++;
-  }
-  if (j == maxJ || stateCount[3] >= maxCount) {
-    return FXSYS_nan();
-  }
-  while (j < maxJ && image->Get(j, centerI) && stateCount[4] < maxCount) {
-    stateCount[4]++;
-    j++;
-  }
-  if (stateCount[4] >= maxCount) {
-    return FXSYS_nan();
-  }
-  int32_t stateCountTotal = stateCount[0] + stateCount[1] + stateCount[2] +
-                            stateCount[3] + stateCount[4];
-  if (5 * FXSYS_abs(stateCountTotal - originalStateCountTotal) >=
-      originalStateCountTotal) {
-    return FXSYS_nan();
-  }
-  return FoundPatternCross(stateCount) ? CenterFromEnd(stateCount, j)
-                                       : FXSYS_nan();
-}
-FX_BOOL CBC_QRFinderPatternFinder::HandlePossibleCenter(
-    const CFX_Int32Array& stateCount,
-    int32_t i,
-    int32_t j) {
-  int32_t stateCountTotal = stateCount[0] + stateCount[1] + stateCount[2] +
-                            stateCount[3] + stateCount[4];
-  FX_FLOAT centerJ = CenterFromEnd(stateCount, j);
-  FX_FLOAT centerI =
-      CrossCheckVertical(i, (int32_t)centerJ, stateCount[2], stateCountTotal);
-  if (!FXSYS_isnan(centerI)) {
-    centerJ = CrossCheckHorizontal((int32_t)centerJ, (int32_t)centerI,
-                                   stateCount[2], stateCountTotal);
-    if (!FXSYS_isnan(centerJ)) {
-      FX_FLOAT estimatedModuleSize = (FX_FLOAT)stateCountTotal / 7.0f;
-      FX_BOOL found = FALSE;
-      int32_t max = m_possibleCenters.GetSize();
-      for (int32_t index = 0; index < max; index++) {
-        CBC_QRFinderPattern* center = m_possibleCenters[index];
-        if (center->AboutEquals(estimatedModuleSize, centerI, centerJ)) {
-          center->IncrementCount();
-          found = TRUE;
-          break;
-        }
-      }
-      if (!found) {
-        m_possibleCenters.Add(
-            new CBC_QRFinderPattern(centerJ, centerI, estimatedModuleSize));
-      }
-      return TRUE;
-    }
-  }
-  return FALSE;
-}
-int32_t CBC_QRFinderPatternFinder::FindRowSkip() {
-  int32_t max = m_possibleCenters.GetSize();
-  if (max <= 1) {
-    return 0;
-  }
-  FinderPattern* firstConfirmedCenter = nullptr;
-  for (int32_t i = 0; i < max; i++) {
-    CBC_QRFinderPattern* center = m_possibleCenters[i];
-    if (center->GetCount() >= CENTER_QUORUM) {
-      if (firstConfirmedCenter) {
-        m_hasSkipped = TRUE;
-        return (int32_t)((fabs(firstConfirmedCenter->GetX() - center->GetX()) -
-                          fabs(firstConfirmedCenter->GetY() - center->GetY())) /
-                         2);
-      }
-      firstConfirmedCenter = center;
-    }
-  }
-  return 0;
-}
-FX_BOOL CBC_QRFinderPatternFinder::HaveMultiplyConfirmedCenters() {
-  int32_t confirmedCount = 0;
-  FX_FLOAT totalModuleSize = 0.0f;
-  int32_t max = m_possibleCenters.GetSize();
-  int32_t i;
-  for (i = 0; i < max; i++) {
-    CBC_QRFinderPattern* pattern = m_possibleCenters[i];
-    if (pattern->GetCount() >= CENTER_QUORUM) {
-      confirmedCount++;
-      totalModuleSize += pattern->GetEstimatedModuleSize();
-    }
-  }
-  if (confirmedCount < 3) {
-    return FALSE;
-  }
-  FX_FLOAT average = totalModuleSize / (FX_FLOAT)max;
-  FX_FLOAT totalDeviation = 0.0f;
-  for (i = 0; i < max; i++) {
-    CBC_QRFinderPattern* pattern = m_possibleCenters[i];
-    totalDeviation += fabs(pattern->GetEstimatedModuleSize() - average);
-  }
-  return totalDeviation <= 0.05f * totalModuleSize;
-}
-
-CFX_ArrayTemplate<CBC_QRFinderPattern*>*
-CBC_QRFinderPatternFinder::SelectBestpatterns(int32_t& e) {
-  int32_t startSize = m_possibleCenters.GetSize();
-  if (m_possibleCenters.GetSize() < 3) {
-    e = BCExceptionRead;
-    BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-  }
-  FX_FLOAT average = 0.0f;
-  if (startSize > 3) {
-    FX_FLOAT totalModuleSize = 0.0f;
-    for (int32_t i = 0; i < startSize; i++)
-      totalModuleSize += m_possibleCenters[i]->GetEstimatedModuleSize();
-
-    average = totalModuleSize / (FX_FLOAT)startSize;
-    for (int32_t j = 0;
-         j < m_possibleCenters.GetSize() && m_possibleCenters.GetSize() > 3;
-         j++) {
-      CBC_QRFinderPattern* pattern = m_possibleCenters[j];
-      if (fabs(pattern->GetEstimatedModuleSize() - average) > 0.2f * average) {
-        delete pattern;
-        m_possibleCenters.RemoveAt(j);
-        j--;
-      }
-    }
-  }
-  if (m_possibleCenters.GetSize() > 3) {
-    std::sort(m_possibleCenters.GetData(),
-              m_possibleCenters.GetData() + m_possibleCenters.GetSize(),
-              [](const CBC_QRFinderPattern* a, CBC_QRFinderPattern* b) {
-                return a->GetCount() > b->GetCount();  // e.g. Descending.
-              });
-  }
-  CFX_ArrayTemplate<CBC_QRFinderPattern*>* vec =
-      new CFX_ArrayTemplate<CBC_QRFinderPattern*>();
-  vec->SetSize(3);
-  (*vec)[0] = m_possibleCenters[0]->Clone();
-  (*vec)[1] = m_possibleCenters[1]->Clone();
-  (*vec)[2] = m_possibleCenters[2]->Clone();
-  return vec;
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRFinderPatternFinder.h b/xfa/fxbarcode/qrcode/BC_QRFinderPatternFinder.h
deleted file mode 100644
index 60ec184fe4..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRFinderPatternFinder.h
+++ /dev/null
@@ -1,59 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRFINDERPATTERNFINDER_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRFINDERPATTERNFINDER_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CBC_CommonBitMatrix;
-class CBC_QRFinderPattern;
-class CBC_ResultPoint;
-class CBC_QRFinderPatternInfo;
-
-class CBC_QRFinderPatternFinder {
- public:
-  CBC_QRFinderPatternFinder(CBC_CommonBitMatrix* image);
-  virtual ~CBC_QRFinderPatternFinder();
-  int32_t FindRowSkip();
-  CBC_CommonBitMatrix* GetImage();
-  CBC_QRFinderPatternInfo* Find(int32_t hint, int32_t& e);
-
-  CFX_Int32Array& GetCrossCheckStateCount();
-  CFX_ArrayTemplate<CBC_QRFinderPattern*>* GetPossibleCenters();
-  CFX_ArrayTemplate<CBC_QRFinderPattern*>* SelectBestpatterns(int32_t& e);
-
-  FX_BOOL HandlePossibleCenter(const CFX_Int32Array& stateCount,
-                               int32_t i,
-                               int32_t j);
-  FX_BOOL HaveMultiplyConfirmedCenters();
-  FX_FLOAT CenterFromEnd(const CFX_Int32Array& stateCount, int32_t end);
-  FX_FLOAT CrossCheckVertical(int32_t startI,
-                              int32_t centerJ,
-                              int32_t maxCount,
-                              int32_t originalStateCountTotal);
-  FX_FLOAT CrossCheckHorizontal(int32_t startJ,
-                                int32_t CenterI,
-                                int32_t maxCOunt,
-                                int32_t originalStateCountTotal);
-  static void OrderBestPatterns(
-      CFX_ArrayTemplate<CBC_QRFinderPattern*>* patterns);
-  static FX_BOOL FoundPatternCross(const CFX_Int32Array& stateCount);
-  static FX_FLOAT Distance(CBC_ResultPoint* point1, CBC_ResultPoint* point2);
-
- private:
-  static const int32_t CENTER_QUORUM;
-  static const int32_t MIN_SKIP;
-  static const int32_t MAX_MODULES;
-  static const int32_t INTEGER_MATH_SHIFT;
-
-  FX_BOOL m_hasSkipped;
-  CBC_CommonBitMatrix* m_image;
-  CFX_Int32Array m_crossCheckStateCount;
-  CFX_ArrayTemplate<CBC_QRFinderPattern*> m_possibleCenters;
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRFINDERPATTERNFINDER_H_
diff --git a/xfa/fxbarcode/qrcode/BC_QRGridSampler.cpp b/xfa/fxbarcode/qrcode/BC_QRGridSampler.cpp
deleted file mode 100644
index be7407ceff..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRGridSampler.cpp
+++ /dev/null
@@ -1,139 +0,0 @@
-// 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");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "xfa/fxbarcode/qrcode/BC_QRGridSampler.h"
-
-#include <memory>
-
-#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
-#include "xfa/fxbarcode/common/BC_CommonPerspectiveTransform.h"
-#include "xfa/fxbarcode/utils.h"
-
-CBC_QRGridSampler CBC_QRGridSampler::m_gridSampler;
-
-CBC_QRGridSampler::CBC_QRGridSampler() {}
-CBC_QRGridSampler::~CBC_QRGridSampler() {}
-CBC_QRGridSampler& CBC_QRGridSampler::GetInstance() {
-  return m_gridSampler;
-}
-void CBC_QRGridSampler::CheckAndNudgePoints(CBC_CommonBitMatrix* image,
-                                            CFX_FloatArray* points,
-                                            int32_t& e) {
-  int32_t width = image->GetWidth();
-  int32_t height = image->GetHeight();
-  FX_BOOL nudged = TRUE;
-  int32_t offset;
-  for (offset = 0; offset < points->GetSize() && nudged; offset += 2) {
-    int32_t x = (int32_t)(*points)[offset];
-    int32_t y = (int32_t)(*points)[offset + 1];
-    if (x < -1 || x > width || y < -1 || y > height) {
-      e = BCExceptionRead;
-      BC_EXCEPTION_CHECK_ReturnVoid(e);
-    }
-    nudged = FALSE;
-    if (x == -1) {
-      (*points)[offset] = 0.0f;
-      nudged = TRUE;
-    } else if (x == width) {
-      (*points)[offset] = (FX_FLOAT)(width - 1);
-      nudged = TRUE;
-    }
-    if (y == -1) {
-      (*points)[offset + 1] = 0.0f;
-      nudged = TRUE;
-    } else if (y == height) {
-      (*points)[offset + 1] = (FX_FLOAT)(height - 1);
-      nudged = TRUE;
-    }
-  }
-  nudged = TRUE;
-  for (offset = (*points).GetSize() - 2; offset >= 0 && nudged; offset -= 2) {
-    int32_t x = (int32_t)(*points)[offset];
-    int32_t y = (int32_t)(*points)[offset + 1];
-    if (x < -1 || x > width || y < -1 || y > height) {
-      e = BCExceptionRead;
-      BC_EXCEPTION_CHECK_ReturnVoid(e);
-    }
-    nudged = FALSE;
-    if (x == -1) {
-      (*points)[offset] = 0.0f;
-      nudged = TRUE;
-    } else if (x == width) {
-      (*points)[offset] = (FX_FLOAT)(width - 1);
-      nudged = TRUE;
-    }
-    if (y == -1) {
-      (*points)[offset + 1] = 0.0f;
-      nudged = TRUE;
-    } else if (y == height) {
-      (*points)[offset + 1] = (FX_FLOAT)(height - 1);
-      nudged = TRUE;
-    }
-  }
-}
-CBC_CommonBitMatrix* CBC_QRGridSampler::SampleGrid(CBC_CommonBitMatrix* image,
-                                                   int32_t dimensionX,
-                                                   int32_t dimensionY,
-                                                   FX_FLOAT p1ToX,
-                                                   FX_FLOAT p1ToY,
-                                                   FX_FLOAT p2ToX,
-                                                   FX_FLOAT p2ToY,
-                                                   FX_FLOAT p3ToX,
-                                                   FX_FLOAT p3ToY,
-                                                   FX_FLOAT p4ToX,
-                                                   FX_FLOAT p4ToY,
-                                                   FX_FLOAT p1FromX,
-                                                   FX_FLOAT p1FromY,
-                                                   FX_FLOAT p2FromX,
-                                                   FX_FLOAT p2FromY,
-                                                   FX_FLOAT p3FromX,
-                                                   FX_FLOAT p3FromY,
-                                                   FX_FLOAT p4FromX,
-                                                   FX_FLOAT p4FromY,
-                                                   int32_t& e) {
-  std::unique_ptr<CBC_CommonPerspectiveTransform> transform(
-      CBC_CommonPerspectiveTransform::QuadrilateralToQuadrilateral(
-          p1ToX, p1ToY, p2ToX, p2ToY, p3ToX, p3ToY, p4ToX, p4ToY, p1FromX,
-          p1FromY, p2FromX, p2FromY, p3FromX, p3FromY, p4FromX, p4FromY));
-  std::unique_ptr<CBC_CommonBitMatrix> bits(new CBC_CommonBitMatrix());
-  bits->Init(dimensionX, dimensionY);
-  CFX_FloatArray points;
-  points.SetSize(dimensionX << 1);
-  for (int32_t y = 0; y < dimensionY; y++) {
-    int32_t max = points.GetSize();
-    FX_FLOAT iValue = (FX_FLOAT)(y + 0.5f);
-    int32_t x;
-    for (x = 0; x < max; x += 2) {
-      points[x] = (FX_FLOAT)((x >> 1) + 0.5f);
-      points[x + 1] = iValue;
-    }
-    transform->TransformPoints(&points);
-    CheckAndNudgePoints(image, &points, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, nullptr);
-    for (x = 0; x < max; x += 2) {
-      if (image->Get((int32_t)points[x], (int32_t)points[x + 1])) {
-        bits->Set(x >> 1, y);
-      }
-    }
-  }
-  return bits.release();
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRGridSampler.h b/xfa/fxbarcode/qrcode/BC_QRGridSampler.h
deleted file mode 100644
index 70bfb9e085..0000000000
--- a/xfa/fxbarcode/qrcode/BC_QRGridSampler.h
+++ /dev/null
@@ -1,48 +0,0 @@
-// 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
-
-#ifndef XFA_FXBARCODE_QRCODE_BC_QRGRIDSAMPLER_H_
-#define XFA_FXBARCODE_QRCODE_BC_QRGRIDSAMPLER_H_
-
-#include "core/fxcrt/include/fx_basic.h"
-
-class CBC_CommonBitMatrix;
-
-class CBC_QRGridSampler {
- private:
-  static CBC_QRGridSampler m_gridSampler;
-
- public:
-  CBC_QRGridSampler();
-  virtual ~CBC_QRGridSampler();
-  virtual CBC_CommonBitMatrix* SampleGrid(CBC_CommonBitMatrix* image,
-                                          int32_t dimensionX,
-                                          int32_t dimensionY,
-                                          FX_FLOAT p1ToX,
-                                          FX_FLOAT p1ToY,
-                                          FX_FLOAT p2ToX,
-                                          FX_FLOAT p2ToY,
-                                          FX_FLOAT p3ToX,
-                                          FX_FLOAT p3ToY,
-                                          FX_FLOAT p4ToX,
-                                          FX_FLOAT p4ToY,
-                                          FX_FLOAT p1FromX,
-                                          FX_FLOAT p1FromY,
-                                          FX_FLOAT p2FromX,
-                                          FX_FLOAT p2FromY,
-                                          FX_FLOAT p3FromX,
-                                          FX_FLOAT p3FromY,
-                                          FX_FLOAT p4FromX,
-                                          FX_FLOAT p4FromY,
-                                          int32_t& e);
-
-  static CBC_QRGridSampler& GetInstance();
-  static void CheckAndNudgePoints(CBC_CommonBitMatrix* image,
-                                  CFX_FloatArray* points,
-                                  int32_t& e);
-};
-
-#endif  // XFA_FXBARCODE_QRCODE_BC_QRGRIDSAMPLER_H_