Remove IFX_Barcode.

This CL replaces IFX_Barcode with the concrete class.

BUG=pdfium:468

Review URL: https://codereview.chromium.org/1890443002
diff --git a/BUILD.gn b/BUILD.gn
index 80d7f68..74903bf 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1031,7 +1031,6 @@
       "xfa/fwl/basewidget/ifwl_scrollbar.h",
       "xfa/fwl/basewidget/ifwl_spinbutton.h",
       "xfa/fwl/basewidget/ifwl_tooltip.h",
-      "xfa/fwl/basewidget/ifx_barcode.h",
       "xfa/fwl/core/cfwl_event.h",
       "xfa/fwl/core/cfwl_message.h",
       "xfa/fwl/core/cfwl_note.h",
diff --git a/xfa.gyp b/xfa.gyp
index b15f41c..88b6e58 100644
--- a/xfa.gyp
+++ b/xfa.gyp
@@ -175,7 +175,6 @@
         "xfa/fwl/basewidget/ifwl_scrollbar.h",
         "xfa/fwl/basewidget/ifwl_spinbutton.h",
         "xfa/fwl/basewidget/ifwl_tooltip.h",
-        "xfa/fwl/basewidget/ifx_barcode.h",
         "xfa/fwl/core/cfwl_event.h",
         "xfa/fwl/core/cfwl_note.h",
         "xfa/fwl/core/cfwl_message.h",
diff --git a/xfa/fwl/basewidget/fwl_barcodeimp.cpp b/xfa/fwl/basewidget/fwl_barcodeimp.cpp
index 0ab2e1e..771d7b9 100644
--- a/xfa/fwl/basewidget/fwl_barcodeimp.cpp
+++ b/xfa/fwl/basewidget/fwl_barcodeimp.cpp
@@ -7,6 +7,7 @@
 #include "xfa/fwl/basewidget/fwl_barcodeimp.h"
 
 #include "xfa/fwl/basewidget/fwl_editimp.h"
+#include "xfa/fwl/basewidget/fxmath_barcodeimp.h"
 #include "xfa/fwl/core/cfwl_themepart.h"
 #include "xfa/fwl/core/fwl_noteimp.h"
 #include "xfa/fwl/core/fwl_targetimp.h"
@@ -174,11 +175,18 @@
                    ? XFA_BCS_EncodeSuccess
                    : 0;
 }
+
 void CFWL_BarcodeImp::CreateBarcodeEngine() {
-  if ((m_pBarcodeEngine == NULL) && (m_type != BC_UNKNOWN)) {
-    m_pBarcodeEngine = FX_Barcode_Create(m_type);
+  if (m_pBarcodeEngine || m_type == BC_UNKNOWN)
+    return;
+
+  m_pBarcodeEngine = new CFX_Barcode;
+  if (!m_pBarcodeEngine->Create(m_type)) {
+    m_pBarcodeEngine->Release();
+    m_pBarcodeEngine = nullptr;
   }
 }
+
 void CFWL_BarcodeImp::ReleaseBarcodeEngine() {
   if (m_pBarcodeEngine) {
     m_pBarcodeEngine->Release();
diff --git a/xfa/fwl/basewidget/fwl_barcodeimp.h b/xfa/fwl/basewidget/fwl_barcodeimp.h
index 77b3552..eacecc3 100644
--- a/xfa/fwl/basewidget/fwl_barcodeimp.h
+++ b/xfa/fwl/basewidget/fwl_barcodeimp.h
@@ -10,10 +10,10 @@
 #include "xfa/fwl/basewidget/fwl_editimp.h"
 #include "xfa/fwl/basewidget/ifwl_barcode.h"
 #include "xfa/fwl/basewidget/ifwl_scrollbar.h"
-#include "xfa/fwl/basewidget/ifx_barcode.h"
 
 class CFWL_WidgetImpProperties;
 class CFWL_BarcodeImpDelegate;
+class CFX_Barcode;
 class IFWL_Widget;
 
 #define XFA_BCS_NeedUpdate 0x0001
@@ -23,26 +23,29 @@
  public:
   CFWL_BarcodeImp(const CFWL_WidgetImpProperties& properties,
                   IFWL_Widget* pOuter);
-  virtual ~CFWL_BarcodeImp();
-  virtual FWL_ERR GetClassName(CFX_WideString& wsClass) const;
-  virtual uint32_t GetClassID() const;
-  virtual FWL_ERR Initialize();
-  virtual FWL_ERR Finalize();
-  virtual FWL_ERR Update();
-  virtual FWL_ERR DrawWidget(CFX_Graphics* pGraphics,
-                             const CFX_Matrix* pMatrix = NULL);
-  virtual FWL_ERR SetText(const CFX_WideString& wsText);
-  virtual void SetType(BC_TYPE type);
+  ~CFWL_BarcodeImp() override;
+
+  FWL_ERR GetClassName(CFX_WideString& wsClass) const override;
+  uint32_t GetClassID() const override;
+  FWL_ERR Initialize() override;
+  FWL_ERR Finalize() override;
+  FWL_ERR Update() override;
+  FWL_ERR DrawWidget(CFX_Graphics* pGraphics,
+                     const CFX_Matrix* pMatrix = nullptr) override;
+  FWL_ERR SetText(const CFX_WideString& wsText) override;
+  void SetType(BC_TYPE type);
   FX_BOOL IsProtectedType();
 
  protected:
+  friend class CFWL_BarcodeImpDelegate;
+
   void GenerateBarcodeImageCache();
   void CreateBarcodeEngine();
   void ReleaseBarcodeEngine();
-  IFX_Barcode* m_pBarcodeEngine;
+
+  CFX_Barcode* m_pBarcodeEngine;
   uint32_t m_dwStatus;
   BC_TYPE m_type;
-  friend class CFWL_BarcodeImpDelegate;
 };
 
 class CFWL_BarcodeImpDelegate : public CFWL_EditImpDelegate {
diff --git a/xfa/fwl/basewidget/fxmath_barcodeimp.cpp b/xfa/fwl/basewidget/fxmath_barcodeimp.cpp
index 9792c6f..5ca0927 100644
--- a/xfa/fwl/basewidget/fxmath_barcodeimp.cpp
+++ b/xfa/fwl/basewidget/fxmath_barcodeimp.cpp
@@ -386,11 +386,3 @@
   errorCode = BCExceptionUnSupportedBarcode;
   return CFX_WideString();
 }
-IFX_Barcode* FX_Barcode_Create(BC_TYPE type) {
-  CFX_Barcode* pBarcode = new CFX_Barcode;
-  if (pBarcode->Create(type)) {
-    return pBarcode;
-  }
-  pBarcode->Release();
-  return NULL;
-}
diff --git a/xfa/fwl/basewidget/fxmath_barcodeimp.h b/xfa/fwl/basewidget/fxmath_barcodeimp.h
index bcad048..b52e900 100644
--- a/xfa/fwl/basewidget/fxmath_barcodeimp.h
+++ b/xfa/fwl/basewidget/fxmath_barcodeimp.h
@@ -7,53 +7,55 @@
 #ifndef XFA_FWL_BASEWIDGET_FXMATH_BARCODEIMP_H_
 #define XFA_FWL_BASEWIDGET_FXMATH_BARCODEIMP_H_
 
+#include "core/fxcrt/include/fx_coordinates.h"
 #include "core/fxcrt/include/fx_string.h"
 #include "core/fxcrt/include/fx_system.h"
-#include "xfa/fwl/basewidget/ifx_barcode.h"
+#include "core/fxge/include/fx_dib.h"
 #include "xfa/fxbarcode/include/BC_Library.h"
 
 class CBC_CodeBase;
+class CFX_Font;
+class CFX_RenderDevice;
+class CFX_Matrix;
 
-class CFX_Barcode : public IFX_Barcode {
+class CFX_Barcode {
  public:
   CFX_Barcode();
   ~CFX_Barcode();
 
   FX_BOOL Create(BC_TYPE type);
-  virtual void Release();
-  virtual BC_TYPE GetType();
-  virtual FX_BOOL Encode(const CFX_WideStringC& contents,
-                         FX_BOOL isDevice,
-                         int32_t& e);
-  virtual FX_BOOL RenderDevice(CFX_RenderDevice* device,
-                               const CFX_Matrix* matirx,
-                               int32_t& e);
-  virtual FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e);
-  virtual CFX_WideString Decode(uint8_t* buf,
-                                int32_t width,
-                                int32_t height,
-                                int32_t& errorCode);
-  virtual CFX_WideString Decode(CFX_DIBitmap* pBitmap, int32_t& errorCode);
-  virtual FX_BOOL SetCharEncoding(BC_CHAR_ENCODING encoding);
-  virtual FX_BOOL SetModuleHeight(int32_t moduleHeight);
-  virtual FX_BOOL SetModuleWidth(int32_t moduleWidth);
-  virtual FX_BOOL SetHeight(int32_t height);
-  virtual FX_BOOL SetWidth(int32_t width);
-  virtual FX_BOOL CheckContentValidity(const CFX_WideStringC& contents);
-  virtual FX_BOOL SetPrintChecksum(FX_BOOL checksum);
-  virtual FX_BOOL SetDataLength(int32_t length);
-  virtual FX_BOOL SetCalChecksum(int32_t state);
-  virtual FX_BOOL SetFont(CFX_Font* pFont);
-  virtual FX_BOOL SetFontSize(FX_FLOAT size);
-  virtual FX_BOOL SetFontStyle(int32_t style);
-  virtual FX_BOOL SetFontColor(FX_ARGB color);
-  virtual FX_BOOL SetTextLocation(BC_TEXT_LOC location);
-  virtual FX_BOOL SetWideNarrowRatio(int32_t ratio);
-  virtual FX_BOOL SetStartChar(FX_CHAR start);
-  virtual FX_BOOL SetEndChar(FX_CHAR end);
-  virtual FX_BOOL SetVersion(int32_t version);
-  virtual FX_BOOL SetErrorCorrectionLevel(int32_t level);
-  virtual FX_BOOL SetTruncated(FX_BOOL truncated);
+  void Release();
+  BC_TYPE GetType();
+  FX_BOOL Encode(const CFX_WideStringC& contents, FX_BOOL isDevice, int32_t& e);
+  FX_BOOL RenderDevice(CFX_RenderDevice* device,
+                       const CFX_Matrix* matirx,
+                       int32_t& e);
+  FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e);
+  CFX_WideString Decode(uint8_t* buf,
+                        int32_t width,
+                        int32_t height,
+                        int32_t& errorCode);
+  CFX_WideString Decode(CFX_DIBitmap* pBitmap, int32_t& errorCode);
+  FX_BOOL SetCharEncoding(BC_CHAR_ENCODING encoding);
+  FX_BOOL SetModuleHeight(int32_t moduleHeight);
+  FX_BOOL SetModuleWidth(int32_t moduleWidth);
+  FX_BOOL SetHeight(int32_t height);
+  FX_BOOL SetWidth(int32_t width);
+  FX_BOOL CheckContentValidity(const CFX_WideStringC& contents);
+  FX_BOOL SetPrintChecksum(FX_BOOL checksum);
+  FX_BOOL SetDataLength(int32_t length);
+  FX_BOOL SetCalChecksum(int32_t state);
+  FX_BOOL SetFont(CFX_Font* pFont);
+  FX_BOOL SetFontSize(FX_FLOAT size);
+  FX_BOOL SetFontStyle(int32_t style);
+  FX_BOOL SetFontColor(FX_ARGB color);
+  FX_BOOL SetTextLocation(BC_TEXT_LOC location);
+  FX_BOOL SetWideNarrowRatio(int32_t ratio);
+  FX_BOOL SetStartChar(FX_CHAR start);
+  FX_BOOL SetEndChar(FX_CHAR end);
+  FX_BOOL SetVersion(int32_t version);
+  FX_BOOL SetErrorCorrectionLevel(int32_t level);
+  FX_BOOL SetTruncated(FX_BOOL truncated);
 
  protected:
   CBC_CodeBase* m_pBCEngine;
diff --git a/xfa/fwl/basewidget/ifx_barcode.h b/xfa/fwl/basewidget/ifx_barcode.h
deleted file mode 100644
index 2cad68c..0000000
--- a/xfa/fwl/basewidget/ifx_barcode.h
+++ /dev/null
@@ -1,62 +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_FWL_BASEWIDGET_IFX_BARCODE_H_
-#define XFA_FWL_BASEWIDGET_IFX_BARCODE_H_
-
-#include "core/fxcrt/include/fx_string.h"
-#include "core/fxcrt/include/fx_system.h"
-#include "core/fxge/include/fx_dib.h"
-#include "xfa/fxbarcode/include/BC_Library.h"
-
-class CFX_Font;
-class CFX_Matrix;
-class CFX_RenderDevice;
-
-class IFX_Barcode {
- public:
-  virtual ~IFX_Barcode() {}
-
-  virtual void Release() = 0;
-
-  virtual BC_TYPE GetType() = 0;
-  virtual FX_BOOL Encode(const CFX_WideStringC& contents,
-                         FX_BOOL isDevice,
-                         int32_t& e) = 0;
-  virtual FX_BOOL RenderDevice(CFX_RenderDevice* device,
-                               const CFX_Matrix* matirx,
-                               int32_t& e) = 0;
-  virtual FX_BOOL RenderBitmap(CFX_DIBitmap*& pOutBitmap, int32_t& e) = 0;
-  virtual CFX_WideString Decode(uint8_t* buf,
-                                int32_t width,
-                                int32_t height,
-                                int32_t& errorCode) = 0;
-  virtual CFX_WideString Decode(CFX_DIBitmap* pBitmap, int32_t& errorCode) = 0;
-  virtual FX_BOOL SetCharEncoding(BC_CHAR_ENCODING encoding) = 0;
-  virtual FX_BOOL SetModuleHeight(int32_t moduleHeight) = 0;
-  virtual FX_BOOL SetModuleWidth(int32_t moduleWidth) = 0;
-  virtual FX_BOOL SetHeight(int32_t height) = 0;
-  virtual FX_BOOL SetWidth(int32_t width) = 0;
-  virtual FX_BOOL CheckContentValidity(const CFX_WideStringC& contents) = 0;
-  virtual FX_BOOL SetPrintChecksum(FX_BOOL checksum) = 0;
-  virtual FX_BOOL SetDataLength(int32_t length) = 0;
-  virtual FX_BOOL SetCalChecksum(int32_t state) = 0;
-  virtual FX_BOOL SetFont(CFX_Font* pFont) = 0;
-  virtual FX_BOOL SetFontSize(FX_FLOAT size) = 0;
-  virtual FX_BOOL SetFontStyle(int32_t style) = 0;
-  virtual FX_BOOL SetFontColor(FX_ARGB color) = 0;
-  virtual FX_BOOL SetTextLocation(BC_TEXT_LOC location) = 0;
-  virtual FX_BOOL SetWideNarrowRatio(int32_t ratio) = 0;
-  virtual FX_BOOL SetStartChar(FX_CHAR start) = 0;
-  virtual FX_BOOL SetEndChar(FX_CHAR end) = 0;
-  virtual FX_BOOL SetVersion(int32_t version) = 0;
-  virtual FX_BOOL SetErrorCorrectionLevel(int32_t level) = 0;
-  virtual FX_BOOL SetTruncated(FX_BOOL truncated) = 0;
-};
-
-IFX_Barcode* FX_Barcode_Create(BC_TYPE type);
-
-#endif  // XFA_FWL_BASEWIDGET_IFX_BARCODE_H_