Support linearized loading

pdfium.gyp

 {
   'variables': {
     'pdf_use_skia%': 0,
     'conditions': [
       ['OS=="linux"', {
         'bundle_freetype%': 0,
       }, {  # On Android there's no system FreeType. On Windows and Mac, only a
             # few methods are used from it.
         'bundle_freetype%': 1,
       }],
@@ skipping 275 matching lines @@
         'core/src/fpdfapi/fpdf_page/fpdf_page_path.cpp',
         'core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp',
         'core/src/fpdfapi/fpdf_page/pageint.h',
         'core/src/fpdfapi/fpdf_parser/fpdf_parser_decode.cpp',
         'core/src/fpdfapi/fpdf_parser/fpdf_parser_document.cpp',
         'core/src/fpdfapi/fpdf_parser/fpdf_parser_encrypt.cpp',
         'core/src/fpdfapi/fpdf_parser/fpdf_parser_fdf.cpp',
         '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/parser_int.h',
         'core/src/fpdfapi/fpdf_render/fpdf_render.cpp',
         'core/src/fpdfapi/fpdf_render/fpdf_render_cache.cpp',
         'core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp',
         'core/src/fpdfapi/fpdf_render/fpdf_render_loadimage.cpp',
         'core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp',
         'core/src/fpdfapi/fpdf_render/fpdf_render_text.cpp',
         'core/src/fpdfapi/fpdf_render/render_int.h',
       ],
     },
     {
@@ skipping 449 matching lines @@
         'testing/embedder_test.cpp',
         'testing/embedder_test.h',
         'testing/embedder_test_mock_delegate.h',
         'testing/embedder_test_timer_handling_delegate.h',
         'testing/fx_string_testhelpers.cpp',
         'testing/fx_string_testhelpers.h',
       ],
     },
   ],
 }