Move fgas_sax into individual files in fde.

xfa/fxfa/include/xfa_checksum.h

Index: xfa/fxfa/include/xfa_checksum.h
diff --git a/xfa/fxfa/include/xfa_checksum.h b/xfa/fxfa/include/xfa_checksum.h
index 6c7ea7a04c946af0e8f5a04e5d7a2829af3a1999..3a4d475689524a0f2d23eb117ea36ef683335475 100644
--- a/xfa/fxfa/include/xfa_checksum.h
+++ b/xfa/fxfa/include/xfa_checksum.h
@@ -7,7 +7,7 @@
 #ifndef XFA_FXFA_INCLUDE_XFA_CHECKSUM_H_
 #define XFA_FXFA_INCLUDE_XFA_CHECKSUM_H_
 
-#include "xfa/fgas/xml/fgas_sax.h"
+#include "xfa/fde/xml/cfx_saxreader.h"
 #include "xfa/fxfa/include/fxfa.h"
 
 class CXFA_SAXReaderHandler;
@@ -15,11 +15,11 @@ class CXFA_ChecksumContext;
 
 class CXFA_SAXContext {
  public:
-  CXFA_SAXContext() : m_eNode(FX_SAXNODE_Unknown) {}
+  CXFA_SAXContext() : m_eNode(CFX_SaxNode::Unknown) {}
 
   CFX_ByteTextBuf m_TextBuf;
   CFX_ByteString m_bsTagName;
-  FX_SAXNODE m_eNode;
+  CFX_SaxNode m_eNode;
 };
 
 class CXFA_SAXReaderHandler {
@@ -28,14 +28,14 @@ class CXFA_SAXReaderHandler {
   ~CXFA_SAXReaderHandler();
 
   void* OnTagEnter(const CFX_ByteStringC& bsTagName,
-                   FX_SAXNODE eType,
+                   CFX_SaxNode eType,
                    uint32_t dwStartPos);
   void OnTagAttribute(void* pTag,
                       const CFX_ByteStringC& bsAttri,
                       const CFX_ByteStringC& bsValue);
   void OnTagBreak(void* pTag);
   void OnTagData(void* pTag,
-                 FX_SAXNODE eType,
+                 CFX_SaxNode eType,
                  const CFX_ByteStringC& bsData,
                  uint32_t dwStartPos);
   void OnTagClose(void* pTag, uint32_t dwEndPos);
@@ -44,7 +44,7 @@ class CXFA_SAXReaderHandler {
                 uint32_t dwEndPos);
 
   void OnTargetData(void* pTag,
-                    FX_SAXNODE eType,
+                    CFX_SaxNode eType,
                     const CFX_ByteStringC& bsData,
                     uint32_t dwStartPos);