extensions: Use V8 Maybe APIs in NativeHandler

extensions/renderer/v8_context_native_handler.cc

Index: extensions/renderer/v8_context_native_handler.cc
diff --git a/extensions/renderer/v8_context_native_handler.cc b/extensions/renderer/v8_context_native_handler.cc
index 6fbc8b246b37e16cfd3382bcdc24ec1f0169be5c..d81c8134a990777aaf50be8d9f919ee80c0379cd 100644
--- a/extensions/renderer/v8_context_native_handler.cc
+++ b/extensions/renderer/v8_context_native_handler.cc
@@ -53,15 +53,20 @@ void V8ContextNativeHandler::GetModuleSystem(
       v8::Local<v8::Object>::Cast(args[0])->CreationContext();
   ScriptContext* context =
       dispatcher_->script_context_set().GetByV8Context(v8_context);
-  args.GetReturnValue().Set(context->module_system()->NewInstance());
+  v8::Local<v8::Value> instance;
+  if (!context->module_system()->NewInstance().ToLocal(&instance))
+    NOTREACHED();  // This can happen if v8 has issues
+  args.GetReturnValue().Set(instance);
 }
 
 void V8ContextNativeHandler::RunWithNativesEnabledModuleSystem(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   CHECK_EQ(args.Length(), 1);
   CHECK(args[0]->IsFunction());
-  v8::Local<v8::Value> call_with_args[] = {
-      context()->module_system()->NewInstance()};
+  v8::Local<v8::Value> instance;
+  if (!context()->module_system()->NewInstance().ToLocal(&instance))
+    NOTREACHED();  // This can happen if v8 has issues
+  v8::Local<v8::Value> call_with_args[] = {instance};
   ModuleSystem::NativesEnabledScope natives_enabled(context()->module_system());
   context()->CallFunction(v8::Local<v8::Function>::Cast(args[0]), 1,
                           call_with_args);