| // Copyright 2017 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_CHROMEOS_ARC_INSTANCE_THROTTLE_ARC_INSTANCE_THROTTLE_H_ |
| #define CHROME_BROWSER_CHROMEOS_ARC_INSTANCE_THROTTLE_ARC_INSTANCE_THROTTLE_H_ |
| |
| #include <memory> |
| #include <string> |
| #include <utility> |
| |
| #include "base/macros.h" |
| #include "chrome/browser/chromeos/throttle_observer.h" |
| #include "chrome/browser/chromeos/throttle_service.h" |
| #include "components/keyed_service/core/keyed_service.h" |
| |
| namespace content { |
| class BrowserContext; |
| } |
| |
| namespace arc { |
| class ArcBridgeService; |
| |
| // This class holds a number of observers which watch for several conditions |
| // (window activation, mojom instance connection, etc) and adjusts the |
| // throttling state of the ARC container on a change in conditions. |
| class ArcInstanceThrottle : public KeyedService, |
| public chromeos::ThrottleService { |
| public: |
| class Delegate { |
| public: |
| Delegate() = default; |
| virtual ~Delegate() = default; |
| |
| virtual void SetCpuRestriction(bool) = 0; |
| virtual void RecordCpuRestrictionDisabledUMA( |
| const std::string& observer_name, |
| base::TimeDelta delta) = 0; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(Delegate); |
| }; |
| |
| // Returns singleton instance for the given BrowserContext, or nullptr if |
| // the browser |context| is not allowed to use ARC. |
| static ArcInstanceThrottle* GetForBrowserContext( |
| content::BrowserContext* context); |
| static ArcInstanceThrottle* GetForBrowserContextForTesting( |
| content::BrowserContext* context); |
| |
| ArcInstanceThrottle(content::BrowserContext* context, |
| ArcBridgeService* arc_bridge_service); |
| ~ArcInstanceThrottle() override; |
| |
| // KeyedService: |
| void Shutdown() override; |
| |
| void set_delegate_for_testing(std::unique_ptr<Delegate> delegate) { |
| delegate_ = std::move(delegate); |
| } |
| |
| void set_level_for_testing(chromeos::ThrottleObserver::PriorityLevel level) { |
| SetLevel(level); |
| } |
| |
| private: |
| // chromeos::ThrottleService: |
| void ThrottleInstance( |
| chromeos::ThrottleObserver::PriorityLevel level) override; |
| void RecordCpuRestrictionDisabledUMA(const std::string& observer_name, |
| base::TimeDelta delta) override; |
| |
| std::unique_ptr<Delegate> delegate_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ArcInstanceThrottle); |
| }; |
| |
| } // namespace arc |
| |
| #endif // CHROME_BROWSER_CHROMEOS_ARC_INSTANCE_THROTTLE_ARC_INSTANCE_THROTTLE_H_ |