From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Samuel Attard <marshallofsound@electronjs.org>
Date: Wed, 8 Mar 2023 13:04:21 -0800
Subject: refactor: expose HostImportModuleDynamically and
 HostGetImportMetaProperties to embedders

This is so that Electron can blend Blink's and Node's implementations of these isolate handlers.

diff --git a/third_party/blink/renderer/bindings/core/v8/v8_initializer.cc b/third_party/blink/renderer/bindings/core/v8/v8_initializer.cc
index b8b20d8c8340c63bd3039a0683446ef1eb4fdf0d..a0781bd3817c2e0d4be37835f0c02063b2e548f1 100644
--- a/third_party/blink/renderer/bindings/core/v8/v8_initializer.cc
+++ b/third_party/blink/renderer/bindings/core/v8/v8_initializer.cc
@@ -606,7 +606,9 @@ bool JavaScriptCompileHintsMagicEnabledCallback(
       execution_context);
 }
 
-v8::MaybeLocal<v8::Promise> HostImportModuleDynamically(
+}
+
+v8::MaybeLocal<v8::Promise> V8Initializer::HostImportModuleDynamically(
     v8::Local<v8::Context> context,
     v8::Local<v8::Data> v8_host_defined_options,
     v8::Local<v8::Value> v8_referrer_resource_url,
@@ -672,7 +674,7 @@ v8::MaybeLocal<v8::Promise> HostImportModuleDynamically(
 }
 
 // https://html.spec.whatwg.org/C/#hostgetimportmetaproperties
-void HostGetImportMetaProperties(v8::Local<v8::Context> context,
+void V8Initializer::HostGetImportMetaProperties(v8::Local<v8::Context> context,
                                  v8::Local<v8::Module> module,
                                  v8::Local<v8::Object> meta) {
   ScriptState* script_state = ScriptState::From(context);
@@ -699,6 +701,8 @@ void HostGetImportMetaProperties(v8::Local<v8::Context> context,
   meta->CreateDataProperty(context, resolve_key, resolve_value).ToChecked();
 }
 
+namespace {
+
 void InitializeV8Common(v8::Isolate* isolate) {
   // Set up garbage collection before setting up anything else as V8 may trigger
   // GCs during Blink setup.
@@ -718,9 +722,9 @@ void InitializeV8Common(v8::Isolate* isolate) {
       SharedArrayBufferConstructorEnabledCallback);
   isolate->SetJavaScriptCompileHintsMagicEnabledCallback(
       JavaScriptCompileHintsMagicEnabledCallback);
-  isolate->SetHostImportModuleDynamicallyCallback(HostImportModuleDynamically);
+  isolate->SetHostImportModuleDynamicallyCallback(V8Initializer::HostImportModuleDynamically);
   isolate->SetHostInitializeImportMetaObjectCallback(
-      HostGetImportMetaProperties);
+      V8Initializer::HostGetImportMetaProperties);
   isolate->SetMetricsRecorder(std::make_shared<V8MetricsRecorder>(isolate));
 
   V8ContextSnapshot::EnsureInterfaceTemplates(isolate);
diff --git a/third_party/blink/renderer/bindings/core/v8/v8_initializer.h b/third_party/blink/renderer/bindings/core/v8/v8_initializer.h
index 30a36cf16d4a8f4692ec6a13be1217212390172a..1924f7cef7f5a1f7523c00071639a6c72f9cca70 100644
--- a/third_party/blink/renderer/bindings/core/v8/v8_initializer.h
+++ b/third_party/blink/renderer/bindings/core/v8/v8_initializer.h
@@ -77,6 +77,17 @@ class CORE_EXPORT V8Initializer {
       v8::Local<v8::Context> context,
       v8::Local<v8::String> source);
 
+  static v8::MaybeLocal<v8::Promise> HostImportModuleDynamically(
+    v8::Local<v8::Context> context,
+    v8::Local<v8::Data> v8_host_defined_options,
+    v8::Local<v8::Value> v8_referrer_resource_url,
+    v8::Local<v8::String> v8_specifier,
+    v8::Local<v8::FixedArray> v8_import_assertions);
+
+  static void HostGetImportMetaProperties(v8::Local<v8::Context> context,
+                                          v8::Local<v8::Module> module,
+                                          v8::Local<v8::Object> meta);
+
   static void WasmAsyncResolvePromiseCallback(
       v8::Isolate* isolate,
       v8::Local<v8::Context> context,