virtual PRInt32     GetBytesPix()       { return mNumBytesPixel; }
PRInt32 nsImagePh::GetBytesPix() { PR_LOG(PhGfxLog, PR_LOG_DEBUG,("nsImagePh::GetBytesPix\n" ));  return mNumBytesPixel; }
  virtual PRInt32     GetBytesPix()       { return mNumBytesPixel; }