Support linearized loading

core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_embeddertest.cpp

Index: core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_embeddertest.cpp
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_embeddertest.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_embeddertest.cpp
index ed2863bcf3fba26681f4f4942daf530721560fc8..d5cf3843e890103881bd37e468f0e34c09759bd1 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_embeddertest.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_embeddertest.cpp
@@ -8,7 +8,8 @@
 class FPDFParserEmbeddertest : public EmbedderTest {};
 
 TEST_F(FPDFParserEmbeddertest, LoadError_454695) {
-  // Test trailer dictionary with $$ze instead of Size.
+  // Test a dictionary with hex string instead of correct content.
+  // Verify that the defective pdf shouldn't be opened correctly.
   EXPECT_FALSE(OpenDocument("testing/resources/bug_454695.pdf"));
 }
 
@@ -28,3 +29,8 @@ TEST_F(FPDFParserEmbeddertest, Bug_544880) {
   // rather than the actual count (0).
   (void)GetPageCount();
 }
+
+TEST_F(FPDFParserEmbeddertest, Feature_Linearized_Loading) {
+  EXPECT_TRUE(
+      OpenDocument("testing/resources/feature_linearized_loading.pdf", true));
+}