chromeos: Add pref for automated brightness increases.

chrome/browser/chromeos/power/power_prefs.cc

 // Copyright 2013 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/chromeos/power/power_prefs.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/logging.h"
@@ skipping 143 matching lines @@
   values.allow_screen_wake_locks =
       prefs->GetBoolean(prefs::kPowerAllowScreenWakeLocks);
   values.enable_auto_screen_lock =
       prefs->GetBoolean(prefs::kEnableAutoScreenLock);
   values.presentation_screen_dim_delay_factor =
       prefs->GetDouble(prefs::kPowerPresentationScreenDimDelayFactor);
   values.user_activity_screen_dim_delay_factor =
       prefs->GetDouble(prefs::kPowerUserActivityScreenDimDelayFactor);
   values.wait_for_initial_user_activity =
       prefs->GetBoolean(prefs::kPowerWaitForInitialUserActivity);
+  values.force_nonzero_brightness_for_user_activity =
+      prefs->GetBoolean(prefs::kPowerForceNonzeroBrightnessForUserActivity);
 
   power_policy_controller_->ApplyPrefs(values);
 }
 
 // static
 void PowerPrefs::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
   registry->RegisterIntegerPref(
       prefs::kPowerAcScreenDimDelayMs,
       420000,
@@ skipping 67 matching lines @@
       2.0,
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
   registry->RegisterDoublePref(
       prefs::kPowerUserActivityScreenDimDelayFactor,
       2.0,
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
   registry->RegisterBooleanPref(
       prefs::kPowerWaitForInitialUserActivity,
       false,
       user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
+  registry->RegisterBooleanPref(
+      prefs::kPowerForceNonzeroBrightnessForUserActivity,
+      true,
+      user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
 }
 
 void PowerPrefs::SetProfile(Profile* profile) {
   // No need to reapply policy if profile hasn't changed, e.g. when adding a
   // secondary user to an existing session.
   if (profile == profile_)
     return;
 
   profile_ = profile;
   pref_change_registrar_.reset();
@@ skipping 33 matching lines @@
   pref_change_registrar_->Add(prefs::kPowerUseVideoActivity, update_callback);
   pref_change_registrar_->Add(prefs::kPowerAllowScreenWakeLocks,
                               update_callback);
   pref_change_registrar_->Add(prefs::kEnableAutoScreenLock, update_callback);
   pref_change_registrar_->Add(prefs::kPowerPresentationScreenDimDelayFactor,
                               update_callback);
   pref_change_registrar_->Add(prefs::kPowerUserActivityScreenDimDelayFactor,
                               update_callback);
   pref_change_registrar_->Add(prefs::kPowerWaitForInitialUserActivity,
                               update_callback);
+  pref_change_registrar_->Add(
+      prefs::kPowerForceNonzeroBrightnessForUserActivity, update_callback);
 
   UpdatePowerPolicyFromPrefs();
 }
 
 }  // namespace chromeos