Strengthen bounds check in CWeightTable::Calc * part II

core/fxge/dib/dib_int.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 CORE_FXGE_DIB_DIB_INT_H_
 #define CORE_FXGE_DIB_DIB_INT_H_
 
 #include <stdint.h>
@@ skipping 37 matching lines @@
 
   bool Calc(int dest_len,
             int dest_min,
             int dest_max,
             int src_len,
             int src_min,
             int src_max,
             int flags);
   PixelWeight* GetPixelWeight(int pixel) const;
   int* GetValueFromPixelWeight(PixelWeight* pWeight, int index) const;
-  size_t GetPixelWeightSize() const;
+  size_t GetMaximumPixelWeightSize(PixelWeight* pWeight) const;
 
  private:
   int m_DestMin;
   int m_ItemSize;
   uint8_t* m_pWeightTables;
   size_t m_dwWeightTablesSize;
 };
 
 class CStretchEngine {
  public:
@@ skipping 38 matching lines @@
   int m_State;
 };
 
 FX_RECT FXDIB_SwapClipBox(FX_RECT& clip,
                           int width,
                           int height,
                           FX_BOOL bFlipX,
                           FX_BOOL bFlipY);
 
 #endif  // CORE_FXGE_DIB_DIB_INT_H_