Split off CPDF_Parser and CPDF_SimpleParser into .h/.cpp files

pdfium.gyp

Index: pdfium.gyp
diff --git a/pdfium.gyp b/pdfium.gyp
index 63fa2fa630eb7ed5e30d24250b9f7f0385733369..353b4f32bc978bddd66370ae0a2047607130e98c 100644
--- a/pdfium.gyp
+++ b/pdfium.gyp
@@ -252,6 +252,8 @@
       'type': 'static_library',
       'sources': [
         'core/include/fpdfapi/cpdf_document.h',
+        'core/include/fpdfapi/cpdf_parser.h',
+        'core/include/fpdfapi/cpdf_simple_parser.h',
         'core/include/fpdfapi/fpdf_module.h',
         'core/include/fpdfapi/fpdf_objects.h',
         'core/include/fpdfapi/fpdf_page.h',
@@ -347,6 +349,8 @@
         'core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp',
         'core/src/fpdfapi/fpdf_page/pageint.h',
         'core/src/fpdfapi/fpdf_parser/cpdf_document.cpp',
+        'core/src/fpdfapi/fpdf_parser/cpdf_parser.cpp',
+        'core/src/fpdfapi/fpdf_parser/cpdf_simple_parser.cpp',
         'core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.cpp',
         'core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.h',
         'core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp',
@@ -355,6 +359,7 @@
         'core/src/fpdfapi/fpdf_parser/fpdf_parser_objects.cpp',
         'core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp',
         'core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.cpp',
+        'core/src/fpdfapi/fpdf_parser/fpdf_parser_utility.h',
         'core/src/fpdfapi/fpdf_parser/parser_int.h',
         'core/src/fpdfapi/fpdf_render/fpdf_render.cpp',
         'core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp',