Remove the unmaintained performance monitor.

chrome/browser/performance_monitor/startup_timer.cc

Index: chrome/browser/performance_monitor/startup_timer.cc
diff --git a/chrome/browser/performance_monitor/startup_timer.cc b/chrome/browser/performance_monitor/startup_timer.cc
deleted file mode 100644
index 8948252b2a84830b8bdcacc00507d1866933b255..0000000000000000000000000000000000000000
--- a/chrome/browser/performance_monitor/startup_timer.cc
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright (c) 2012 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.
-
-#include "chrome/browser/performance_monitor/startup_timer.h"
-
-#include "base/bind.h"
-#include "base/logging.h"
-#include "base/strings/string_number_conversions.h"
-#include "chrome/browser/chrome_notification_types.h"
-#include "chrome/browser/performance_monitor/database.h"
-#include "chrome/browser/performance_monitor/performance_monitor.h"
-#include "content/public/browser/browser_thread.h"
-#include "content/public/browser/notification_details.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/notification_source.h"
-#include "content/public/browser/notification_types.h"
-
-namespace performance_monitor {
-
-namespace {
-// Needed because Database::AddMetric is overloaded, so base::Bind doesn't work.
-void AddMetricToDatabaseOnBackgroundThread(Database* database,
-                                           const Metric& metric) {
-  database->AddMetric(metric);
-}
-
-}  // namespace
-
-// static
-StartupTimer* StartupTimer::g_startup_timer_ = NULL;
-
-StartupTimer::StartupTimer() : startup_begin_(base::TimeTicks::Now()),
-                               startup_type_(STARTUP_NORMAL),
-                               performance_monitor_initialized_(false) {
-  CHECK(!g_startup_timer_);
-  g_startup_timer_ = this;
-
-  // We need this check because, under certain rare circumstances,
-  // NotificationService::current() will return null, and this will cause a
-  // segfault in NotificationServiceImpl::AddObserver(). Currently, this only
-  // happens as a result of the child process launched by BrowserMainTest.
-  // WarmConnectionFieldTrial_Invalid.
-  if (content::NotificationService::current()) {
-    registrar_.Add(this, chrome::NOTIFICATION_PERFORMANCE_MONITOR_INITIALIZED,
-                   content::NotificationService::AllSources());
-  }
-}
-
-StartupTimer::~StartupTimer() {
-  DCHECK(this == g_startup_timer_);
-  g_startup_timer_ = NULL;
-}
-
-bool StartupTimer::SignalStartupComplete(StartupType startup_type) {
-  DCHECK(elapsed_startup_time_ == base::TimeDelta());
-
-  startup_type_ = startup_type;
-
-  elapsed_startup_time_ =
-      base::TimeTicks::Now() - total_pause_ - startup_begin_;
-
-  if (performance_monitor_initialized_)
-    InsertElapsedStartupTime();
-
-  return true;
-}
-
-// static
-void StartupTimer::PauseTimer() {
-  // Check that the timer is not already paused.
-  DCHECK(g_startup_timer_->pause_started_ == base::TimeTicks());
-
-  g_startup_timer_->pause_started_ = base::TimeTicks::Now();
-}
-
-// static
-void StartupTimer::UnpauseTimer() {
-  // Check that the timer has been paused.
-  DCHECK(g_startup_timer_->pause_started_ != base::TimeTicks());
-
-  g_startup_timer_->total_pause_ += base::TimeTicks::Now() -
-                                    g_startup_timer_->pause_started_;
-
-  g_startup_timer_->pause_started_ = base::TimeTicks();
-}
-
-void StartupTimer::Observe(int type,
-                           const content::NotificationSource& source,
-                           const content::NotificationDetails& details) {
-  CHECK(type == chrome::NOTIFICATION_PERFORMANCE_MONITOR_INITIALIZED);
-  performance_monitor_initialized_ = true;
-
-  if (PerformanceMonitor::GetInstance()->database_logging_enabled()) {
-    if (elapsed_startup_time_ != base::TimeDelta())
-      InsertElapsedStartupTime();
-    if (elapsed_session_restore_times_.size())
-      InsertElapsedSessionRestoreTime();
-  }
-}
-
-// static
-void StartupTimer::SetElapsedSessionRestoreTime(
-    const base::TimeDelta& elapsed_session_restore_time) {
-  if (PerformanceMonitor::GetInstance()->database_logging_enabled()) {
-    g_startup_timer_->elapsed_session_restore_times_.push_back(
-        elapsed_session_restore_time);
-
-    if (g_startup_timer_->performance_monitor_initialized_)
-      g_startup_timer_->InsertElapsedSessionRestoreTime();
-  }
-}
-
-void StartupTimer::InsertElapsedStartupTime() {
-  content::BrowserThread::PostBlockingPoolSequencedTask(
-      Database::kDatabaseSequenceToken,
-      FROM_HERE,
-      base::Bind(
-          &AddMetricToDatabaseOnBackgroundThread,
-          base::Unretained(PerformanceMonitor::GetInstance()->database()),
-          Metric(startup_type_ == STARTUP_NORMAL ? METRIC_STARTUP_TIME
-                                                 : METRIC_TEST_STARTUP_TIME,
-                 base::Time::Now(),
-                 static_cast<double>(
-                     elapsed_startup_time_.ToInternalValue()))));
-}
-
-void StartupTimer::InsertElapsedSessionRestoreTime() {
-  for (std::vector<base::TimeDelta>::const_iterator iter =
-           elapsed_session_restore_times_.begin();
-       iter != elapsed_session_restore_times_.end(); ++iter) {
-    content::BrowserThread::PostBlockingPoolSequencedTask(
-        Database::kDatabaseSequenceToken,
-        FROM_HERE,
-        base::Bind(
-            &AddMetricToDatabaseOnBackgroundThread,
-            base::Unretained(PerformanceMonitor::GetInstance()->database()),
-            Metric(METRIC_SESSION_RESTORE_TIME,
-                   base::Time::Now(),
-                   static_cast<double>(iter->ToInternalValue()))));
-  }
-}
-
-}  // namespace performance_monitor