[Extensions Bindings] Add support for updateArgumentsPreValidate

extensions/renderer/api_binding_types.h

Index: extensions/renderer/api_binding_types.h
diff --git a/extensions/renderer/api_binding_types.h b/extensions/renderer/api_binding_types.h
index c9edc46941601bfb7af86bcee9c3dc3123978b4b..9665ab157628e336dee2858bee72ad0cfdee9796 100644
--- a/extensions/renderer/api_binding_types.h
+++ b/extensions/renderer/api_binding_types.h
@@ -21,6 +21,19 @@ using RunJSFunction = base::Callback<void(v8::Local<v8::Function>,
                                           int argc,
                                           v8::Local<v8::Value>[])>;
 
+// A callback to execute the given v8::Function synchronously and return the
+// result. Note that script can be suspended, so you need to be certain that
+// it is not before expected a synchronous result. We use a Global instead of a
+// Local because certain implementations need to create a persistent handle in
+// order to prevent immediate destruction of the locals.
+// TODO(devlin): if we could, using Local here with an EscapableHandleScope
+// would be preferable.
+using RunJSFunctionSync =
+    base::Callback<v8::Global<v8::Value>(v8::Local<v8::Function>,
+                                         v8::Local<v8::Context>,
+                                         int argc,
+                                         v8::Local<v8::Value>[])>;
+
 }  // namespace binding
 }  // namespace extensions