Flag covering HID-detection OOBE screen removed.

chrome/browser/ui/webui/chromeos/login/demo_mode_detector.cc

+// Copyright (c) 2014 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/ui/webui/chromeos/login/demo_mode_detector.h"
+
+#include "base/command_line.h"
+#include "base/prefs/pref_service.h"
+#include "base/strings/string_number_conversions.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/chromeos/login/ui/login_display_host.h"
+#include "chrome/browser/chromeos/login/ui/login_display_host_impl.h"
+#include "chrome/common/pref_names.h"
+#include "chromeos/chromeos_switches.h"
+
+namespace {
+  const int kDerelectDetectionTimeoutSeconds = 8 * 60 * 60;  // 8 hours.
+  const int kDerelectIdleTimeoutSeconds = 5 * 60;  // 5 minutes.

[Nikita (slow), 2014/06/11 12:51:21]

nit: Align comments.

+  const int kOobeTimerUpdateIntervalSeconds = 5 * 60;  // 5 minutes.
+}  // namespace
+
+namespace chromeos {
+
+DemoModeDetector::DemoModeDetector() : weak_ptr_factory_(this) {
+  SetupTimeouts();
+}
+
+DemoModeDetector::~DemoModeDetector() {
+}
+
+void DemoModeDetector::InitDetection() {
+  if (IsDerelict())
+    StartIdleDetection();
+  else
+    StartOobeTimer();
+}
+
+void DemoModeDetector::StopDetection() {
+  idle_detector_.reset();
+}
+
+void DemoModeDetector::StartIdleDetection() {
+  if (!idle_detector_.get()) {
+    idle_detector_.reset(
+        new IdleDetector(base::Closure(),
+                         base::Bind(&DemoModeDetector::OnIdle,
+                                    weak_ptr_factory_.GetWeakPtr())));
+  }
+  idle_detector_->Start(derelict_idle_timeout_);
+}
+
+void DemoModeDetector::StartOobeTimer() {
+  if (oobe_timer_.IsRunning())
+    return;
+  oobe_timer_.Start(FROM_HERE,
+                    oobe_timer_update_interval_,
+                    this,
+                    &DemoModeDetector::OnOobeTimerUpdate);
+}
+
+void DemoModeDetector::OnIdle() {
+  LoginDisplayHost* host = LoginDisplayHostImpl::default_host();
+  host->StartDemoAppLaunch();
+}
+
+void DemoModeDetector::OnOobeTimerUpdate() {
+  time_on_oobe_ += oobe_timer_update_interval_;
+
+  PrefService* prefs = g_browser_process->local_state();
+  prefs->SetInt64(prefs::kTimeOnOobe, time_on_oobe_.InSeconds());
+
+  if (IsDerelict()) {
+    oobe_timer_.Stop();
+    StartIdleDetection();
+  }
+}
+
+void DemoModeDetector::SetupTimeouts() {
+  CommandLine* cmdline = CommandLine::ForCurrentProcess();
+  DCHECK(cmdline);
+
+  PrefService* prefs = g_browser_process->local_state();
+  time_on_oobe_ =
+      base::TimeDelta::FromSeconds(prefs->GetInt64(prefs::kTimeOnOobe));
+
+  int derelict_detection_timeout;
+  if (!cmdline->HasSwitch(switches::kDerelictDetectionTimeout) ||
+      !base::StringToInt(
+          cmdline->GetSwitchValueASCII(switches::kDerelictDetectionTimeout),
+          &derelict_detection_timeout)) {
+    derelict_detection_timeout = kDerelectDetectionTimeoutSeconds;
+  }
+  derelict_detection_timeout_ =
+      base::TimeDelta::FromSeconds(derelict_detection_timeout);
+
+  int derelict_idle_timeout;
+  if (!cmdline->HasSwitch(switches::kDerelictIdleTimeout) ||
+      !base::StringToInt(
+          cmdline->GetSwitchValueASCII(switches::kDerelictIdleTimeout),
+          &derelict_idle_timeout)) {
+    derelict_idle_timeout = kDerelectIdleTimeoutSeconds;
+  }
+  derelict_idle_timeout_ = base::TimeDelta::FromSeconds(derelict_idle_timeout);
+
+
+  int oobe_timer_update_interval;
+  if (!cmdline->HasSwitch(switches::kOobeTimerInterval) ||
+      !base::StringToInt(
+          cmdline->GetSwitchValueASCII(switches::kOobeTimerInterval),
+          &oobe_timer_update_interval)) {
+    oobe_timer_update_interval = kOobeTimerUpdateIntervalSeconds;
+  }
+  oobe_timer_update_interval_ =
+      base::TimeDelta::FromSeconds(oobe_timer_update_interval);
+
+  // In case we'd be derelict before our timer is set to trigger, reduce
+  // the interval so we check again when we're scheduled to go derelict.
+  oobe_timer_update_interval_ =
+      std::max(std::min(oobe_timer_update_interval_,
+                        derelict_detection_timeout_ - time_on_oobe_),
+               base::TimeDelta::FromSeconds(0));
+}
+
+bool DemoModeDetector::IsDerelict() {
+  return time_on_oobe_ >= derelict_detection_timeout_;
+}
+
+}  // namespace chromeos