blob: 290da81536d1e0e19bbf2f6f8f3d64c386c4a43f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
// Copyright 2013 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 CONTENT_RENDERER_RENDER_PROCESS_VISIBILITY_MANAGER_H_
#define CONTENT_RENDERER_RENDER_PROCESS_VISIBILITY_MANAGER_H_
#include "base/memory/singleton.h"
#include "content/common/content_export.h"
namespace content {
class CONTENT_EXPORT RenderProcessVisibilityManager {
public:
static RenderProcessVisibilityManager* GetInstance();
void WidgetVisibilityChanged(bool visible);
private:
friend struct DefaultSingletonTraits<RenderProcessVisibilityManager>;
RenderProcessVisibilityManager();
~RenderProcessVisibilityManager();
int num_visible_render_widgets_;
DISALLOW_COPY_AND_ASSIGN(RenderProcessVisibilityManager);
};
} // namespace content
#endif // CONTENT_RENDERER_RENDER_PROCESS_VISIBILITY_MANAGER_H_
|
