Move CPDF_SyntaxParser init methods into ctor.

- CPDF_SyntaxParser can no longer be initialized multiple times.
- Make the file length and header offset const.
- Make the header offset type FX_FILESIZE consistently.
- Simplify for the common case where the header offset is 0.

Change-Id: I7138db1fbcec3b7578b0239b92fc1154fa4dc4ce
Reviewed-on: https://pdfium-review.googlesource.com/38850
Reviewed-by: Art Snake <art-snake@yandex-team.ru>
Commit-Queue: Lei Zhang <thestig@chromium.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/core/fpdfapi/parser/cfdf_document.cpp b/core/fpdfapi/parser/cfdf_document.cpp
index f6af4546d7..bfade94af6 100644
--- a/core/fpdfapi/parser/cfdf_document.cpp
+++ b/core/fpdfapi/parser/cfdf_document.cpp
@@ -39,8 +39,7 @@ std::unique_ptr<CFDF_Document> CFDF_Document::ParseMemory(uint8_t* pData,
 void CFDF_Document::ParseStream(
     const RetainPtr<IFX_SeekableReadStream>& pFile) {
   m_pFile = pFile;
-  CPDF_SyntaxParser parser;
-  parser.InitParser(m_pFile, 0);
+  CPDF_SyntaxParser parser(m_pFile);
   while (1) {
     bool bNumber;
     ByteString word = parser.GetNextWord(&bNumber);