power_manager: Send BrightnessChanged signal.

util.cc

 // Copyright (c) 2010 The Chromium OS 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 <stdlib.h>
 #include <unistd.h>
 #include <sys/wait.h>
 #include <dbus/dbus-glib-lowlevel.h>
 
 #include "base/logging.h"
 #include "chromeos/dbus/dbus.h"
 #include "chromeos/dbus/service_constants.h"
 
 namespace power_manager {
 
 namespace util {
 
 // interface names
-const char* kPowerManagerInterface = "org.chromium.PowerManager";
 const char* kLowerPowerManagerInterface = "org.chromium.LowerPowerManager";
 
 // powerd -> powerm signals
 const char* kRequestCleanShutdown = "RequestCleanShutdown";
 const char* kSuspendSignal = "SuspendSignal";
 const char* kShutdownSignal = "ShutdownSignal";
 
 // powerm -> powerd signals
 const char* kLidClosed = "LidClosed";
 const char* kLidOpened = "LidOpened";
@@ skipping 51 matching lines @@
   CHECK(signal);
   ::dbus_g_proxy_send(proxy.gproxy(), signal, NULL);
   ::dbus_message_unref(signal);
 }
 
 // A utility function to send a signal to upper power daemon (powerd).
 void SendSignalToPowerD(const char* signal_name) {
   LOG(INFO) << "Sending signal '" << signal_name << "' to PowerManager:";
   chromeos::dbus::Proxy proxy(chromeos::dbus::GetSystemBusConnection(),
                               "/",
-                              power_manager::kPowerManagerInterface);
+                              kPowerManagerInterface);
   DBusMessage* signal = ::dbus_message_new_signal(
       "/",
-      power_manager::kPowerManagerInterface,
+      kPowerManagerInterface,
       signal_name);
   CHECK(signal);
   ::dbus_g_proxy_send(proxy.gproxy(), signal, NULL);
   ::dbus_message_unref(signal);
 }
 
 }  // namespace util
 
 }  // namespace power_manager