Split apart the remainder of fpdf_render_render.cpp into per-class files.

core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.h

Index: core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.h
diff --git a/core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.h b/core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.h
index c259efb1ee5bd18ccdc14369d62f2ec894de59ff..f8794bcb7fa5122c87e606267764c45f5a1f3b8b 100644
--- a/core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.h
+++ b/core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.h
@@ -58,7 +58,7 @@ class CPDF_SyntaxParser {
  private:
   friend class CPDF_Parser;
   friend class CPDF_DataAvail;
-  friend class fpdf_parser_parser_ReadHexString_Test;
+  friend class cpdf_syntax_parser_ReadHexString_Test;
 
   static const int kParserMaxRecursionDepth = 64;
   static int s_CurrentRecursionDepth;