Remove all remaining PDFium infrastructure for V8 natives.

Bug: v8:7624
Change-Id: I59a1da39c876a38294e78ae87e012f537ec6c04f
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/61290
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
diff --git a/samples/pdfium_test.cc b/samples/pdfium_test.cc
index 83c5742..92a7bea 100644
--- a/samples/pdfium_test.cc
+++ b/samples/pdfium_test.cc
@@ -1005,11 +1005,10 @@
 #ifdef PDF_ENABLE_V8
   std::unique_ptr<v8::Platform> platform;
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
-  v8::StartupData natives;
   v8::StartupData snapshot;
   if (!options.disable_javascript) {
     platform = InitializeV8ForPDFiumWithStartupData(
-        options.exe_path, options.bin_directory, &natives, &snapshot);
+        options.exe_path, options.bin_directory, &snapshot);
   }
 #else   // V8_USE_EXTERNAL_STARTUP_DATA
   if (!options.disable_javascript)
@@ -1092,7 +1091,6 @@
   if (!options.disable_javascript) {
     v8::V8::ShutdownPlatform();
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
-    free(const_cast<char*>(natives.data));
     free(const_cast<char*>(snapshot.data));
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
   }
diff --git a/testing/embedder_test_main.cpp b/testing/embedder_test_main.cpp
index 36297a5..34dfb06 100644
--- a/testing/embedder_test_main.cpp
+++ b/testing/embedder_test_main.cpp
@@ -21,7 +21,6 @@
 
 #ifdef PDF_ENABLE_V8
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
-v8::StartupData* g_v8_natives = nullptr;
 v8::StartupData* g_v8_snapshot = nullptr;
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
 #endif  // PDF_ENABLE_V8
@@ -34,14 +33,13 @@
   void SetUp() override {
 #ifdef PDF_ENABLE_V8
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
-    if (g_v8_natives && g_v8_snapshot) {
-      platform_ = InitializeV8ForPDFiumWithStartupData(
-          g_exe_path, std::string(), nullptr, nullptr);
+    if (g_v8_snapshot) {
+      platform_ = InitializeV8ForPDFiumWithStartupData(g_exe_path,
+                                                       std::string(), nullptr);
     } else {
-      g_v8_natives = new v8::StartupData;
       g_v8_snapshot = new v8::StartupData;
       platform_ = InitializeV8ForPDFiumWithStartupData(
-          g_exe_path, std::string(), g_v8_natives, g_v8_snapshot);
+          g_exe_path, std::string(), g_v8_snapshot);
     }
 #else
     platform_ = InitializeV8ForPDFium(g_exe_path);
@@ -83,8 +81,6 @@
 
 #ifdef PDF_ENABLE_V8
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
-  if (g_v8_natives)
-    free(const_cast<char*>(g_v8_natives->data));
   if (g_v8_snapshot)
     free(const_cast<char*>(g_v8_snapshot->data));
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
diff --git a/testing/fuzzers/pdf_fuzzer_init_public.cc b/testing/fuzzers/pdf_fuzzer_init_public.cc
index 1423635..5ece0bc 100644
--- a/testing/fuzzers/pdf_fuzzer_init_public.cc
+++ b/testing/fuzzers/pdf_fuzzer_init_public.cc
@@ -16,7 +16,7 @@
 #endif
 
 #ifdef _WIN32
-#include <Windows.h>
+#include <windows.h>
 #elif defined(__APPLE__)
 #include <mach-o/dyld.h>
 #else  // Linux
@@ -32,7 +32,7 @@
 
 #ifdef _WIN32
   char path[MAX_PATH];
-  DWORD len = GetModuleFileNameA(NULL, path, MAX_PATH);
+  DWORD len = GetModuleFileNameA(nullptr, path, MAX_PATH);
   if (len != 0)
     result = std::string(path, len);
 #elif defined(__APPLE__)
@@ -62,7 +62,7 @@
 #ifdef PDF_ENABLE_V8
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
     platform = InitializeV8ForPDFiumWithStartupData(
-        ProgramPath(), "", &natives_blob, &snapshot_blob);
+        ProgramPath(), std::string(), &snapshot_blob);
 #else
     platform = InitializeV8ForPDFium(ProgramPath());
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
@@ -83,7 +83,6 @@
 
 #ifdef PDF_ENABLE_V8
   std::unique_ptr<v8::Platform> platform;
-  v8::StartupData natives_blob;
   v8::StartupData snapshot_blob;
 #endif
 
diff --git a/testing/unit_test_main.cpp b/testing/unit_test_main.cpp
index 35c4939..5d50249 100644
--- a/testing/unit_test_main.cpp
+++ b/testing/unit_test_main.cpp
@@ -28,10 +28,9 @@
 #ifdef PDF_ENABLE_V8
   std::unique_ptr<v8::Platform> platform;
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
-  static v8::StartupData* natives = new v8::StartupData;
   static v8::StartupData* snapshot = new v8::StartupData;
-  platform = InitializeV8ForPDFiumWithStartupData(argv[0], std::string(),
-                                                  natives, snapshot);
+  platform =
+      InitializeV8ForPDFiumWithStartupData(argv[0], std::string(), snapshot);
 #else  // V8_USE_EXTERNAL_STARTUP_DATA
   platform = InitializeV8ForPDFium(argv[0]);
 #endif  // V8_USE_EXTERNAL_STARTUP_DATA
diff --git a/testing/v8_initializer.cpp b/testing/v8_initializer.cpp
index b484ee4..8564b2e 100644
--- a/testing/v8_initializer.cpp
+++ b/testing/v8_initializer.cpp
@@ -78,13 +78,9 @@
 std::unique_ptr<v8::Platform> InitializeV8ForPDFiumWithStartupData(
     const std::string& exe_path,
     const std::string& bin_dir,
-    v8::StartupData* natives_blob,
     v8::StartupData* snapshot_blob) {
-  // TODO(v8:7624): Remove natives and all remaining infrastructure.
   std::unique_ptr<v8::Platform> platform = InitializeV8Common(exe_path);
-  if (natives_blob && snapshot_blob) {
-    if (!GetExternalData(exe_path, bin_dir, "natives_blob.bin", natives_blob))
-      return nullptr;
+  if (snapshot_blob) {
     if (!GetExternalData(exe_path, bin_dir, "snapshot_blob.bin", snapshot_blob))
       return nullptr;
     v8::V8::SetSnapshotDataBlob(snapshot_blob);
diff --git a/testing/v8_initializer.h b/testing/v8_initializer.h
index 35c98d9..bd2301c 100644
--- a/testing/v8_initializer.h
+++ b/testing/v8_initializer.h
@@ -20,12 +20,10 @@
 }  // namespace v8
 
 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
-// |natives_blob| and |snapshot_blob| are optional out parameters. They should
-// either both be valid or both be nullptrs.
+// |snapshot_blob| is an optional out parameter.
 std::unique_ptr<v8::Platform> InitializeV8ForPDFiumWithStartupData(
     const std::string& exe_path,
     const std::string& bin_dir,
-    v8::StartupData* natives_blob,
     v8::StartupData* snapshot_blob);
 #else
 std::unique_ptr<v8::Platform> InitializeV8ForPDFium(