1// Copyright (c) 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#include "chrome/browser/metrics/chrome_browser_main_extra_parts_metrics.h"
6
7#include <string>
8
9#include "base/bind.h"
10#include "base/command_line.h"
11#include "base/cpu.h"
12#include "base/metrics/histogram.h"
13#include "base/threading/sequenced_worker_pool.h"
14#include "base/time/time.h"
15#include "chrome/browser/about_flags.h"
16#include "chrome/browser/browser_process.h"
17#include "chrome/browser/chrome_browser_main.h"
18#include "chrome/browser/pref_service_flags_storage.h"
19#include "chrome/browser/shell_integration.h"
20#include "content/public/browser/browser_thread.h"
21#include "ui/base/touch/touch_device.h"
22#include "ui/base/ui_base_switches.h"
23
24#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
25#include <gnu/libc-version.h>
26
27#include "base/version.h"
28#endif
29
30namespace {
31
32enum UMALinuxGlibcVersion {
33  UMA_LINUX_GLIBC_NOT_PARSEABLE,
34  UMA_LINUX_GLIBC_UNKNOWN,
35  UMA_LINUX_GLIBC_2_11,
36  UMA_LINUX_GLIBC_2_19 = UMA_LINUX_GLIBC_2_11 + 8,
37  // NOTE: Add new version above this line and update the enum list in
38  // tools/histograms/histograms.xml accordingly.
39  UMA_LINUX_GLIBC_VERSION_COUNT
40};
41
42enum UMATouchEventsState {
43  UMA_TOUCH_EVENTS_ENABLED,
44  UMA_TOUCH_EVENTS_AUTO_ENABLED,
45  UMA_TOUCH_EVENTS_AUTO_DISABLED,
46  UMA_TOUCH_EVENTS_DISABLED,
47  // NOTE: Add states only immediately above this line. Make sure to
48  // update the enum list in tools/histograms/histograms.xml accordingly.
49  UMA_TOUCH_EVENTS_STATE_COUNT
50};
51
52void RecordIntelMicroArchitecture() {
53#if defined(ARCH_CPU_X86_FAMILY)
54  base::CPU cpu;
55  base::CPU::IntelMicroArchitecture arch = cpu.GetIntelMicroArchitecture();
56  UMA_HISTOGRAM_ENUMERATION("Platform.IntelMaxMicroArchitecture", arch,
57                            base::CPU::MAX_INTEL_MICRO_ARCHITECTURE);
58#endif  // defined(ARCH_CPU_X86_FAMILY)
59}
60
61void RecordDefaultBrowserUMAStat() {
62  // Record whether Chrome is the default browser or not.
63  ShellIntegration::DefaultWebClientState default_state =
64      ShellIntegration::GetDefaultBrowser();
65  UMA_HISTOGRAM_ENUMERATION("DefaultBrowser.State", default_state,
66                            ShellIntegration::NUM_DEFAULT_STATES);
67}
68
69void RecordLinuxGlibcVersion() {
70#if defined(OS_LINUX) && !defined(OS_CHROMEOS)
71  Version version(gnu_get_libc_version());
72
73  UMALinuxGlibcVersion glibc_version_result = UMA_LINUX_GLIBC_NOT_PARSEABLE;
74  if (version.IsValid() && version.components().size() == 2) {
75    glibc_version_result = UMA_LINUX_GLIBC_UNKNOWN;
76    int glibc_major_version = version.components()[0];
77    int glibc_minor_version = version.components()[1];
78    if (glibc_major_version == 2) {
79      // A constant to translate glibc 2.x minor versions to their
80      // equivalent UMALinuxGlibcVersion values.
81      const int kGlibcMinorVersionTranslationOffset = 11 - UMA_LINUX_GLIBC_2_11;
82      int translated_glibc_minor_version =
83          glibc_minor_version - kGlibcMinorVersionTranslationOffset;
84      if (translated_glibc_minor_version >= UMA_LINUX_GLIBC_2_11 &&
85          translated_glibc_minor_version <= UMA_LINUX_GLIBC_2_19) {
86        glibc_version_result =
87            static_cast<UMALinuxGlibcVersion>(translated_glibc_minor_version);
88      }
89    }
90  }
91  UMA_HISTOGRAM_ENUMERATION("Linux.GlibcVersion", glibc_version_result,
92                            UMA_LINUX_GLIBC_VERSION_COUNT);
93#endif
94}
95
96void RecordTouchEventState() {
97  const CommandLine& command_line = *CommandLine::ForCurrentProcess();
98  const std::string touch_enabled_switch =
99      command_line.HasSwitch(switches::kTouchEvents) ?
100      command_line.GetSwitchValueASCII(switches::kTouchEvents) :
101      switches::kTouchEventsAuto;
102
103  UMATouchEventsState state;
104  if (touch_enabled_switch.empty() ||
105      touch_enabled_switch == switches::kTouchEventsEnabled) {
106    state = UMA_TOUCH_EVENTS_ENABLED;
107  } else if (touch_enabled_switch == switches::kTouchEventsAuto) {
108    state = ui::IsTouchDevicePresent() ?
109        UMA_TOUCH_EVENTS_AUTO_ENABLED : UMA_TOUCH_EVENTS_AUTO_DISABLED;
110  } else if (touch_enabled_switch == switches::kTouchEventsDisabled) {
111    state = UMA_TOUCH_EVENTS_DISABLED;
112  } else {
113    NOTREACHED();
114    return;
115  }
116
117  UMA_HISTOGRAM_ENUMERATION("Touchscreen.TouchEventsEnabled", state,
118                            UMA_TOUCH_EVENTS_STATE_COUNT);
119}
120
121}  // namespace
122
123ChromeBrowserMainExtraPartsMetrics::ChromeBrowserMainExtraPartsMetrics() {
124}
125
126ChromeBrowserMainExtraPartsMetrics::~ChromeBrowserMainExtraPartsMetrics() {
127}
128
129void ChromeBrowserMainExtraPartsMetrics::PreProfileInit() {
130  RecordIntelMicroArchitecture();
131}
132
133void ChromeBrowserMainExtraPartsMetrics::PreBrowserStart() {
134  about_flags::PrefServiceFlagsStorage flags_storage_(
135      g_browser_process->local_state());
136  about_flags::RecordUMAStatistics(&flags_storage_);
137
138  // Querying the default browser state can be slow, do it in the background.
139  content::BrowserThread::GetBlockingPool()->PostDelayedTask(
140        FROM_HERE,
141        base::Bind(&RecordDefaultBrowserUMAStat),
142        base::TimeDelta::FromSeconds(45));
143}
144
145void ChromeBrowserMainExtraPartsMetrics::PostBrowserStart() {
146  RecordLinuxGlibcVersion();
147  RecordTouchEventState();
148}
149
150namespace chrome {
151
152void AddMetricsExtraParts(ChromeBrowserMainParts* main_parts) {
153  main_parts->AddParts(new ChromeBrowserMainExtraPartsMetrics());
154}
155
156}  // namespace chrome
157