Add PDFCharIsLineEnding helper

core/include/fpdfapi/fpdf_parser.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_INCLUDE_FPDFAPI_FPDF_PARSER_H_
 #define CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_
 
 #include "../../../third_party/base/nonstd_unique_ptr.h"
@@ skipping 43 matching lines @@
 inline bool PDFCharIsNumeric(uint8_t c) {
   return PDF_CharType[c] == 'N';
 }
 inline bool PDFCharIsDelimiter(uint8_t c) {
   return PDF_CharType[c] == 'D';
 }
 inline bool PDFCharIsOther(uint8_t c) {
   return PDF_CharType[c] == 'R';
 }
 
+inline bool PDFCharIsLineEnding(uint8_t c) {
+  return c == '\r' || c == '\n';
+}
+
 // Indexed by 8-bit char code, contains unicode code points.
 extern const FX_WORD PDFDocEncoding[256];
 
 class CPDF_Document : public CFX_PrivateData, public CPDF_IndirectObjects {
  public:
   CPDF_Document();
   explicit CPDF_Document(CPDF_Parser* pParser);
 
   ~CPDF_Document();
 
@@ skipping 871 matching lines @@
                        FX_DWORD src_size,
                        const CPDF_Dictionary* pDict,
                        uint8_t*& dest_buf,
                        FX_DWORD& dest_size,
                        CFX_ByteString& ImageEncoding,
                        CPDF_Dictionary*& pImageParms,
                        FX_DWORD estimated_size,
                        FX_BOOL bImageAcc);
 
 #endif  // CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_