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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_TASK_MANAGER_PROVIDERS_WEB_CONTENTS_WEB_CONTENTS_TASK_PROVIDER_H_
#define CHROME_BROWSER_TASK_MANAGER_PROVIDERS_WEB_CONTENTS_WEB_CONTENTS_TASK_PROVIDER_H_
#include <map>
#include "base/memory/weak_ptr.h"
#include "chrome/browser/task_manager/providers/task_provider.h"
namespace content {
class RenderFrameHost;
class WebContents;
} // namespace content
namespace task_manager {
class WebContentsTag;
// Defines a provider to provide the renderer tasks that are associated with
// various |WebContents| from various services.
// There should be no or only one instance of this class at any time.
class WebContentsTaskProvider : public TaskProvider {
public:
WebContentsTaskProvider();
WebContentsTaskProvider(const WebContentsTaskProvider&) = delete;
WebContentsTaskProvider& operator=(const WebContentsTaskProvider&) = delete;
~WebContentsTaskProvider() override;
// This will be called every time we're notified that a new |WebContentsTag|
// has been created.
void OnWebContentsTagCreated(const WebContentsTag* tag);
// Manually remove |tag|'s corresponding Task.
void OnWebContentsTagRemoved(const WebContentsTag* tag);
// task_manager::TaskProvider:
Task* GetTaskOfUrlRequest(int child_id, int route_id) override;
// Checks if the given |web_contents| is tracked by the provider.
bool HasWebContents(content::WebContents* web_contents) const;
// Returns the task, if any, of the provided frame.
base::WeakPtr<Task> GetTaskOfFrame(content::RenderFrameHost* frame);
private:
class WebContentsEntry;
// task_manager::TaskProvider:
void StartUpdating() override;
void StopUpdating() override;
// Called when the given |web_contents| are destroyed so that we can delete
// its associated entry.
void DeleteEntry(content::WebContents* web_contents);
// A map to associate a |WebContents| with its corresponding entry that we
// create for it to be able to track it.
std::map<content::WebContents*, std::unique_ptr<WebContentsEntry>>
entries_map_;
// True if this provider is listening to WebContentsTags and updating its
// observers, false otherwise.
bool is_updating_ = false;
};
} // namespace task_manager
#endif // CHROME_BROWSER_TASK_MANAGER_PROVIDERS_WEB_CONTENTS_WEB_CONTENTS_TASK_PROVIDER_H_
|
