Fix leaks in the embedder tests themselves.

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 e00887ff5f335f17c5c473e2cdb8a9b3db070b97..882a915edd8140c33d9f0eb5a86793a9ae4d75f5 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_embeddertest.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_embeddertest.cpp
@@ -16,5 +16,7 @@ TEST_F(FPDFParserEmbeddertest, LoadError_454695) {
 TEST_F(FPDFParserEmbeddertest, Bug_481363) {
   // Test colorspace object with malformed dictionary.
   EXPECT_TRUE(OpenDocument("testing/resources/bug_481363.pdf"));
-  EXPECT_NE(nullptr, LoadPage(0));
+  FPDF_PAGE page = LoadPage(0);
+  EXPECT_NE(nullptr, page);
+  UnloadPage(page);
 }