Deliver IPC messages together with SwapCompositorFrame

content/public/common/widget_visible_state.h

+// 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.
+
+#ifndef CONTENT_PUBLIC_COMMON_WIDGET_VISIBLE_STATE_H_
+#define CONTENT_PUBLIC_COMMON_WIDGET_VISIBLE_STATE_H_
+
+namespace content {
+
+enum WidgetVisibleState {
+  WIDGET_VISIBLE_STATE_PROVISIONAL_LOAD_COMMITTED = 0,
+  WIDGET_VISIBLE_STATE_FIRST_VISUALLY_NON_EMPTY_LAYOUT,
+  WIDGET_VISIBLE_STATE_DID_FINISH_DOCUMENT_LOAD,
+  WIDGET_VISIBLE_STATE_DID_HANDLE_ONLOAD_EVENTS,
+
+  WIDGET_VISIBLE_STATE_MAX = WIDGET_VISIBLE_STATE_DID_HANDLE_ONLOAD_EVENTS,
+};
+
+}  // namespace content
+
+#endif  // CONTENT_PUBLIC_COMMON_WIDGET_VISIBLE_STATE_H_