cros: Stop forcing off display when lid events are received

ash/system/power/tablet_power_button_controller.cc

Index: ash/system/power/tablet_power_button_controller.cc
diff --git a/ash/system/power/tablet_power_button_controller.cc b/ash/system/power/tablet_power_button_controller.cc
index 0347bbdd26b23a67a2f8a2cbced29a5082ef1af7..28ba191eedf1beadb4dec9e0992023029eb5c793 100644
--- a/ash/system/power/tablet_power_button_controller.cc
+++ b/ash/system/power/tablet_power_button_controller.cc
@@ -162,6 +162,15 @@ void TabletPowerButtonController::SuspendDone(
   last_resume_time_ = tick_clock_->NowTicks();
 }
 
+void TabletPowerButtonController::LidEventReceived(
+    chromeos::PowerManagerClient::LidState state,
+    const base::TimeTicks& timestamp) {
+  if (state == chromeos::PowerManagerClient::LidState::OPEN ||
+      state == chromeos::PowerManagerClient::LidState::CLOSED) {

[Daniel Erat, 2017/04/13 04:31:16]

you don't really need to test this; these are the only values that will ever be
passed.

[Qiang(Joe) Xu, 2017/04/13 04:49:40]

Done.

+    SetDisplayForcedOff(false);
+  }
+}
+
 void TabletPowerButtonController::OnMaximizeModeStarted() {
   shutdown_timer_.Stop();
   if (controller_->CanCancelShutdownAnimation())