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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CHROME_BROWSER_BACKGROUND_BACKGROUND_MODE_OPTIMIZER_H_ | |
6 #define CHROME_BROWSER_BACKGROUND_BACKGROUND_MODE_OPTIMIZER_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "base/macros.h" | |
11 #include "chrome/browser/lifetime/keep_alive_state_observer.h" | |
12 | |
13 class Browser; | |
14 | |
15 // BackgroundModeOptimizer is responsible for applying some optimizations to | |
16 // save resources (memory) when Chrome runs in background-only mode. | |
17 // It tries to restart the browser to release accumulated memory when it | |
18 // is considered non distruptive. | |
19 class BackgroundModeOptimizer : public KeepAliveStateObserver { | |
20 public: | |
21 // Creates a new BackgroundModeOptimizer. Can return null if optimizations | |
22 // are not supported. | |
23 static std::unique_ptr<BackgroundModeOptimizer> Create(); | |
sky
2016/05/18 19:23:06
nit: constructor/destructor before other methods.
dgn
2016/06/20 17:45:18
Done.
| |
24 ~BackgroundModeOptimizer() override; | |
25 | |
26 // KeepAliveStateObserver implementation | |
27 void OnKeepAliveStateChanged(bool is_keeping_alive) override; | |
28 void OnKeepAliveRestartStateChanged(bool can_restart) override; | |
29 | |
30 private: | |
31 BackgroundModeOptimizer(); | |
32 void TryBrowserRestart(); | |
sky
2016/05/18 19:23:06
nit: newline between 31/32 and a description for T
dgn
2016/06/20 17:45:18
Done.
| |
33 | |
34 DISALLOW_COPY_AND_ASSIGN(BackgroundModeOptimizer); | |
35 }; | |
36 | |
37 #endif // CHROME_BROWSER_BACKGROUND_BACKGROUND_MODE_OPTIMIZER_H_ | |
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