Add dart_invoke to tonic for calls into App code.

sky/engine/bindings/scheduled_action.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sky/engine/config.h"
 #include "sky/engine/bindings/scheduled_action.h"
 
 #include "sky/engine/tonic/dart_api_scope.h"
 #include "sky/engine/tonic/dart_error.h"
+#include "sky/engine/tonic/dart_invoke.h"
 #include "sky/engine/tonic/dart_isolate_scope.h"
 
 namespace blink {
 
 ScheduledAction::ScheduledAction(DartState* dart_state, Dart_Handle closure)
     : closure_(dart_state, closure) {
   DCHECK(Dart_IsClosure(closure));
 }
 
 ScheduledAction::~ScheduledAction() {
 }
 
 void ScheduledAction::Execute(ExecutionContext*) {
   if (!closure_.dart_state())
     return;
   DartIsolateScope scope(closure_.dart_state()->isolate());
   DartApiScope api_scope;
-  LogIfError(Dart_InvokeClosure(closure_.value(), 0, nullptr));
+  DartInvokeAppClosure(closure_.value(), 0, nullptr);
 }
 
 }  // namespace blink