Add missing operators for CFX_ByteStringC.

core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.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 "../../../include/fpdfapi/fpdf_parser.h"
 #include "../../../include/fpdfapi/fpdf_module.h"
 #include "../../../include/fpdfapi/fpdf_page.h"
 #include "../../../src/fxcrt/fx_safe_types.h"
@@ skipping 2540 matching lines @@
 {
     FX_INT32 taglen = tag.GetLength();
     if (taglen == 0) {
         return FALSE;
     }
     FX_FILESIZE pos = m_Pos;
     FX_INT32 offset = 0;
     if (!bForward) {
         offset = taglen - 1;
     }
-    FX_LPCBYTE tag_data = tag;
+    FX_LPCBYTE tag_data = tag.GetPtr();
     FX_BYTE byte;
     while (1) {
         if (bForward) {
             if (limit) {
                 if (pos >= m_Pos + limit) {
                     return FALSE;
                 }
             }
             if (!GetCharAt(pos, byte)) {
                 return FALSE;
@@ skipping 16 matching lines @@
                     continue;
                 }
             } else {
                 offset --;
                 if (offset >= 0) {
                     pos --;
                     continue;
                 }
             }
             FX_FILESIZE startpos = bForward ? pos - taglen + 1 : pos;
-            if (!bWholeWord || IsWholeWord(startpos, limit, tag, taglen)) {
+            if (!bWholeWord || IsWholeWord(startpos, limit, tag.GetPtr(), taglen)) {
                 m_Pos = startpos;
                 return TRUE;
             }
         }
         if (bForward) {
             offset = byte == tag_data[0] ? 1 : 0;
             pos ++;
         } else {
             offset = byte == tag_data[taglen - 1] ? taglen - 2 : taglen - 1;
             pos --;
@@ skipping 2033 matching lines @@
 {
     FX_INT32 iSize = m_childNode.GetSize();
     for (FX_INT32 i = 0; i < iSize; ++i) {
         CPDF_PageNode *pNode = (CPDF_PageNode*)m_childNode[i];
         if (pNode) {
             delete pNode;
         }
     }
     m_childNode.RemoveAll();
 }