[Extensions Bindings] Allow custom hooks to return values, throw

extensions/renderer/api_bindings_system_unittest.cc

Index: extensions/renderer/api_bindings_system_unittest.cc
diff --git a/extensions/renderer/api_bindings_system_unittest.cc b/extensions/renderer/api_bindings_system_unittest.cc
index 23906077abc11196bd5003127b9e95e529114ed2..59d684f6af2d1cca954da046473c372ecc037540 100644
--- a/extensions/renderer/api_bindings_system_unittest.cc
+++ b/extensions/renderer/api_bindings_system_unittest.cc
@@ -298,7 +298,8 @@ TEST_F(APIBindingsSystemTest, TestCustomHooks) {
   auto hook = [](bool* did_call,
                  const APISignature* signature, v8::Local<v8::Context> context,
                  std::vector<v8::Local<v8::Value>>* arguments,
-                 const ArgumentSpec::RefMap& type_refs) {
+                 const ArgumentSpec::RefMap& type_refs,
+                 v8::Local<v8::Value>* return_value) {
     *did_call = true;
     if (arguments->size() != 2) {  // ASSERT* messes with the return type.
       EXPECT_EQ(2u, arguments->size());