XFA: Remove dead code in CBC_BufferedImageLuminanceSource and friends.

xfa/src/fxbarcode/BC_BufferedImageLuminanceSource.h

 // 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 _BC_BUFFEREDIMAGELUMINANCESOURCE_H_
 #define _BC_BUFFEREDIMAGELUMINANCESOURCE_H_
 class CBC_LuminanceSource;
 class CBC_BufferedImageLuminanceSource;
 class CBC_BufferedImageLuminanceSource : public CBC_LuminanceSource {
  public:
-  CBC_BufferedImageLuminanceSource(const CFX_WideString& filename);
-  CBC_BufferedImageLuminanceSource(CFX_DIBitmap* pBitmap);
+  explicit CBC_BufferedImageLuminanceSource(const CFX_WideString& filename);
+  explicit CBC_BufferedImageLuminanceSource(CFX_DIBitmap* pBitmap);
   virtual ~CBC_BufferedImageLuminanceSource();
-  CBC_LuminanceSource* RotateCounterClockwise(int32_t& e);
-  CBC_LuminanceSource* Crop(int32_t left,
-                            int32_t top,
-                            int32_t width,
-                            int32_t height);
 
   CFX_ByteArray* GetRow(int32_t y, CFX_ByteArray& row, int32_t& e);
   CFX_ByteArray* GetMatrix();
-  FX_BOOL IsCropSupported();
-  FX_BOOL IsRotateSupported();
   virtual void Init(int32_t& e);
 
  private:
   int32_t m_bytesPerLine;
   int32_t m_left;
   int32_t m_top;
   CFX_Int32Array m_rgbData;
   CFX_DIBitmap* m_pBitmap;
   const CFX_WideString m_filename;
 };
 #endif