chrome/browser/extensions/api/system_memory/memory_info_provider.h - Issue 389633002: Move system.* family of APIs to extensions/

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Side by Side Diff: chrome/browser/extensions/api/system_memory/memory_info_provider.h

Issue 389633002: Move system.* family of APIs to extensions/ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Fixed gn build Created 6 years, 5 months ago

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1 // Copyright 2013 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_EXTENSIONS_API_SYSTEM_MEMORY_MEMORY_INFO_PROVIDER_H_

6 #define CHROME_BROWSER_EXTENSIONS_API_SYSTEM_MEMORY_MEMORY_INFO_PROVIDER_H_

7

8 #include "base/lazy_instance.h"

9 #include "chrome/browser/extensions/api/system_info/system_info_provider.h"

10 #include "chrome/common/extensions/api/system_memory.h"

11

12 namespace extensions {

13

14 class MemoryInfoProvider : public SystemInfoProvider {

15 public:

16 static MemoryInfoProvider* Get();

17

18 const api::system_memory::MemoryInfo& memory_info() const;

19

20 static void InitializeForTesting(scoped_refptr<MemoryInfoProvider> provider);

21

22 private:

23 friend class MockMemoryInfoProviderImpl;

24

25 MemoryInfoProvider();

26 virtual ~MemoryInfoProvider();

27

28 // Overriden from SystemInfoProvider.

29 virtual bool QueryInfo() OVERRIDE;

30

31 // The last information filled up by QueryInfo and is accessed on multiple

32 // threads, but the whole class is being guarded by SystemInfoProvider base

33 // class.

34 //

35 // \|info_\| is accessed on the UI thread while \|is_waiting_for_completion_\| is

36 // false and on the sequenced worker pool while \|is_waiting_for_completion_\|

37 // is true.

38 api::system_memory::MemoryInfo info_;

39

40 static base::LazyInstance<scoped_refptr<MemoryInfoProvider> > provider_;

41

42 DISALLOW_COPY_AND_ASSIGN(MemoryInfoProvider);

43 };

44

45 } // namespace extensions

46

47 #endif // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_MEMORY_MEMORY_INFO_PROVIDER_H_

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