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// Copyright 2015 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 CHROMECAST_CRASH_APP_STATE_TRACKER_H_
#define CHROMECAST_CRASH_APP_STATE_TRACKER_H_
#include <string>
namespace chromecast {
class AppStateTracker {
public:
// Record |app_id| as the last app that attempted to launch.
static void SetLastLaunchedApp(const std::string& app_id);
// The current app becomes the previous app, |app_id| becomes the current app.
static void SetCurrentApp(const std::string& app_id);
// Returns the id of the app that was last attempted to launch.
static std::string GetLastLaunchedApp();
// Returns the id of the active app.
static std::string GetCurrentApp();
// Returns the id of the app which was previously active.
static std::string GetPreviousApp();
};
} // namespace chromecast
#endif // CHROMECAST_CRASH_APP_STATE_TRACKER_H_
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