Add the c++ code part of bindings2/

sky/engine/bindings2/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/bindings2/scheduled_action.h"
+
+#include "sky/engine/tonic/dart_api_scope.h"
+#include "sky/engine/tonic/dart_error.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));
+}
+
+}  // namespace blink