// Copyright (c) 2010 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 CHROME_BROWSER_UI_THREAD_HELPERS_H_ #define CHROME_BROWSER_UI_THREAD_HELPERS_H_ #pragma once class Task; namespace tracked_objects { class Location; } // namespace tracked_objects namespace ui_thread_helpers { // This can be used in place of BrowserThread::PostTask(BrowserThread::UI, ...). // The purpose of this function is to be able to execute Chrome work alongside // native work when a message loop is running nested or, in the case of Mac, // in a different mode. Currently this is used for updating the HostZoomMap // while the Wrench menu is open, allowing for the zoom display to update. See // http://crbug.com/48679 for the full rationale. // // CAVEAT EMPTOR: This function's implementation is different across platforms // and may run the Task in a way that differs from the stock MessageLoop. You // should check the behavior on all platforms if you use this. bool PostTaskWhileRunningMenu(const tracked_objects::Location& from_here, Task* task); } // namespace ui_thread_helpers #endif // CHROME_BROWSER_UI_THREAD_HELPERS_H_