Merge to XFA: Sanity check the values of TRUE and FALSE.

core/src/fxcodec/jbig2/JBig2_Context.cpp

 // 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
 
 #include "JBig2_Context.h"
 
 #include <list>
 
@@ skipping 363 matching lines @@
       FX_WORD wTemp;
       nonstd::unique_ptr<JBig2PageInfo> pPageInfo(new JBig2PageInfo);
       if (m_pStream->readInteger(&pPageInfo->m_dwWidth) != 0 ||
           m_pStream->readInteger(&pPageInfo->m_dwHeight) != 0 ||
           m_pStream->readInteger(&pPageInfo->m_dwResolutionX) != 0 ||
           m_pStream->readInteger(&pPageInfo->m_dwResolutionY) != 0 ||
           m_pStream->read1Byte(&pPageInfo->m_cFlags) != 0 ||
           m_pStream->readShortInteger(&wTemp) != 0) {
         return JBIG2_ERROR_TOO_SHORT;
       }
-      pPageInfo->m_bIsStriped = ((wTemp >> 15) & 1) ? TRUE : FALSE;
+      pPageInfo->m_bIsStriped = !!(wTemp & 0x8000);
       pPageInfo->m_wMaxStripeSize = wTemp & 0x7fff;
       bool bMaxHeight = (pPageInfo->m_dwHeight == 0xffffffff);
       if (bMaxHeight && pPageInfo->m_bIsStriped != TRUE)
         pPageInfo->m_bIsStriped = TRUE;
 
       if (!m_bBufSpecified) {
         FX_DWORD height =
             bMaxHeight ? pPageInfo->m_wMaxStripeSize : pPageInfo->m_dwHeight;
         m_pPage.reset(new CJBig2_Image(pPageInfo->m_dwWidth, height));
       }
@@ skipping 1025 matching lines @@
         SBSYMCODES[CURTEMP].code = CURCODE;
         CURCODE = CURCODE + 1;
       }
       CURTEMP = CURTEMP + 1;
     }
     CURLEN = CURLEN + 1;
   }
   FX_Free(LENCOUNT);
   FX_Free(FIRSTCODE);
 }