| // Copyright 2018 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_METRICS_TAB_STATS_TRACKER_DELEGATE_H_ |
| #define CHROME_BROWSER_METRICS_TAB_STATS_TRACKER_DELEGATE_H_ |
| |
| #include "build/build_config.h" |
| |
| #if defined(OS_WIN) |
| #include "ui/aura/window.h" |
| #include "ui/aura/window_tree_host.h" |
| #endif |
| |
| class TabStatsTrackerDelegate { |
| public: |
| TabStatsTrackerDelegate() {} |
| virtual ~TabStatsTrackerDelegate() {} |
| |
| #if defined(OS_WIN) |
| using OcclusionStatusMap = |
| base::flat_map<aura::WindowTreeHost*, aura::Window::OcclusionState>; |
| |
| virtual OcclusionStatusMap CallComputeNativeWindowOcclusionStatus( |
| std::vector<aura::WindowTreeHost*> hosts); |
| #endif // OS_WIN |
| }; |
| |
| #endif // CHROME_BROWSER_METRICS_TAB_STATS_TRACKER_DELEGATE_H_ |