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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
// 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_TRACING_CHROME_TRACING_DELEGATE_H_
#define CHROME_BROWSER_TRACING_CHROME_TRACING_DELEGATE_H_
#include <optional>
#include "base/gtest_prod_util.h"
#include "base/no_destructor.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "content/public/browser/tracing_delegate.h"
#if BUILDFLAG(IS_ANDROID)
#include "chrome/browser/ui/android/tab_model/tab_model_list_observer.h"
#else
#include "chrome/browser/ui/browser_list_observer.h"
#endif
namespace tracing {
class BackgroundTracingStateManager;
}
// These values are logged to UMA. Entries should not be renumbered and numeric
// values should never be reused. Please keep in sync with
// "TracingFinalizationDisallowedReason" in
// src/tools/metrics/histograms/enums.xml.
enum class TracingFinalizationDisallowedReason {
kIncognitoLaunched = 0,
// kProfileNotLoaded = 1, Obsolete
// kCrashMetricsNotLoaded = 2, Obsolete
// kLastSessionCrashed = 3, Obsolete
// kMetricsReportingDisabled = 4, Obsolete
// kTraceUploadedRecently = 5, Obsolete
// kLastTracingSessionDidNotEnd = 6, Obsolete as of Nov'2024.
kMaxValue = kIncognitoLaunched
};
class ChromeTracingDelegate : public content::TracingDelegate,
#if BUILDFLAG(IS_ANDROID)
public TabModelListObserver
#else
public BrowserListObserver
#endif
{
public:
// Whether system-wide performance trace collection using the external system
// tracing service is enabled.
static bool IsSystemWideTracingEnabled();
ChromeTracingDelegate();
~ChromeTracingDelegate() override;
// content::TracingDelegate implementation:
bool IsRecordingAllowed(bool requires_anonymized_data,
base::TimeTicks session_start) const override;
bool ShouldSaveUnuploadedTrace() const override;
std::unique_ptr<tracing::BackgroundTracingStateManager> CreateStateManager()
override;
std::string RecordSerializedSystemProfileMetrics() const override;
tracing::MetadataDataSource::BundleRecorder
CreateSystemProfileMetadataRecorder() const override;
#if BUILDFLAG(IS_WIN)
void GetSystemTracingState(
base::OnceCallback<void(bool service_supported, bool service_enabled)>
on_tracing_state) override;
void EnableSystemTracing(
base::OnceCallback<void(bool success)> on_complete) override;
void DisableSystemTracing(
base::OnceCallback<void(bool success)> on_complete) override;
#endif // BUILDFLAG(IS_WIN)
private:
#if BUILDFLAG(IS_ANDROID)
// TabModelListObserver implementation.
void OnTabModelAdded(TabModel* tab_model) override;
void OnTabModelRemoved(TabModel* tab_model) override;
#else
// BrowserListObserver implementation.
void OnBrowserAdded(Browser* browser) override;
void OnBrowserRemoved(Browser* browser) override;
#endif
// Track the most recent OffTheRecord browser creation time. It's ok to update
// to a newer timestamp when there are multiple OffTheRecord browsers, since
// the newer timestamp is stricter.
base::TimeTicks latest_incognito_launched_;
};
#endif // CHROME_BROWSER_TRACING_CHROME_TRACING_DELEGATE_H_
|
