Fix PDFiumFuzzerHelper build without V8_USE_EXTERNAL_STARTUP_DATA.

pdf/pdfium/fuzzers/pdfium_fuzzer_helper.cc

Index: pdf/pdfium/fuzzers/pdfium_fuzzer_helper.cc
diff --git a/pdf/pdfium/fuzzers/pdfium_fuzzer_helper.cc b/pdf/pdfium/fuzzers/pdfium_fuzzer_helper.cc
index 3d49a0a7c36a3b9346762241a77e156e64e4b656..9598caa40e575ddff1f4cc339c09d54645f81bf8 100644
--- a/pdf/pdfium/fuzzers/pdfium_fuzzer_helper.cc
+++ b/pdf/pdfium/fuzzers/pdfium_fuzzer_helper.cc
@@ -222,8 +222,12 @@ bool PDFiumFuzzerHelper::RenderPage(const FPDF_DOCUMENT& doc,
 // Initialize the library once for all runs of the fuzzer.
 struct TestCase {
   TestCase() {
+#ifdef V8_USE_EXTERNAL_STARTUP_DATA
     InitializeV8ForPDFium(ProgramPath(), "", &natives_blob, &snapshot_blob,
                           &platform);
+#else
+    InitializeV8ForPDFium(ProgramPath(), &platform);
+#endif
 
     memset(&config, '\0', sizeof(config));
     config.version = 2;