chromeos: Remove references to UnlockScreenFailed signal.

chromeos/dbus/power_manager_client.cc

Index: chromeos/dbus/power_manager_client.cc
diff --git a/chromeos/dbus/power_manager_client.cc b/chromeos/dbus/power_manager_client.cc
index 5c712fdb119721c1881be4bb1fc363a880344af8..6c279feff6ea9de27a962fee4a87b542b5fcb6d0 100644
--- a/chromeos/dbus/power_manager_client.cc
+++ b/chromeos/dbus/power_manager_client.cc
@@ -114,13 +114,6 @@ class PowerManagerClientImpl : public PowerManagerClient {
                    weak_ptr_factory_.GetWeakPtr()),
         base::Bind(&PowerManagerClientImpl::SignalConnected,
                    weak_ptr_factory_.GetWeakPtr()));
-    session_manager_proxy_->ConnectToSignal(
-        chromium::kChromiumInterface,
-        chromium::kUnlockScreenFailedSignal,
-        base::Bind(&PowerManagerClientImpl::ScreenUnlockFailedSignalReceived,
-                   weak_ptr_factory_.GetWeakPtr()),
-        base::Bind(&PowerManagerClientImpl::SignalConnected,
-                   weak_ptr_factory_.GetWeakPtr()));
 
     power_manager_proxy_->ConnectToSignal(
         power_manager::kPowerManagerInterface,
@@ -587,10 +580,6 @@ class PowerManagerClientImpl : public PowerManagerClient {
     FOR_EACH_OBSERVER(Observer, observers_, UnlockScreen());
   }
 
-  void ScreenUnlockFailedSignalReceived(dbus::Signal* signal) {
-    FOR_EACH_OBSERVER(Observer, observers_, UnlockScreenFailed());
-  }
-
   void IdleNotifySignalReceived(dbus::Signal* signal) {
     dbus::MessageReader reader(signal);
     int64 threshold = 0;