--- a/dom/power/Makefile.in
+++ b/dom/power/Makefile.in
@@ -63,9 +63,11 @@ XPIDLSRCS = \
   nsIDOMPowerManager.idl \
   nsIPowerManagerService.idl \
   $(NULL)
 
 ifdef ENABLE_TESTS
 DIRS += test
 endif
 
+include $(topsrcdir)/config/config.mk
+include $(topsrcdir)/ipc/chromium/chromium-config.mk
 include $(topsrcdir)/config/rules.mk

--- a/dom/power/PowerManager.cpp
+++ b/dom/power/PowerManager.cpp
@@ -30,19 +30,21 @@
  * use your version of this file under the terms of the MPL, indicate your
  * decision by deleting the provisions above and replace them with the notice
  * and other provisions required by the GPL or the LGPL. If you do not delete
  * the provisions above, a recipient may use your version of this file under
  * the terms of any one of the MPL, the GPL or the LGPL.
  *
  * ***** END LICENSE BLOCK ***** */
 
+#include "PowerManager.h"
+#include "nsContentUtils.h"
 #include "nsDOMClassInfoID.h"
-
-#include "PowerManager.h"
+#include "nsIPowerManagerService.h"
+#include "nsServiceManagerUtils.h"
 
 DOMCI_DATA(MozPowerManager, mozilla::dom::power::PowerManager)
 
 namespace mozilla {
 namespace dom {
 namespace power {
 
 NS_INTERFACE_MAP_BEGIN(PowerManager)
@@ -52,20 +54,36 @@ NS_INTERFACE_MAP_BEGIN(PowerManager)
 NS_INTERFACE_MAP_END
 
 NS_IMPL_ADDREF(PowerManager)
 NS_IMPL_RELEASE(PowerManager)
 
 NS_IMETHODIMP
 PowerManager::Reboot()
 {
-  return NS_ERROR_NOT_IMPLEMENTED;
+  NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_DOM_SECURITY_ERR);
+
+  nsCOMPtr<nsIPowerManagerService> pmService =
+    do_GetService(POWERMANAGERSERVICE_CONTRACTID);
+  NS_ENSURE_TRUE(pmService, NS_OK);
+
+  pmService->Reboot();
+
+  return NS_OK;
 }
 
 NS_IMETHODIMP
 PowerManager::PowerOff()
 {
-  return NS_ERROR_NOT_IMPLEMENTED;
+  NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_DOM_SECURITY_ERR);
+
+  nsCOMPtr<nsIPowerManagerService> pmService =
+    do_GetService(POWERMANAGERSERVICE_CONTRACTID);
+  NS_ENSURE_TRUE(pmService, NS_OK);
+
+  pmService->PowerOff();
+
+  return NS_OK;
 }
 
 } // power
 } // dom
 } // mozilla

--- a/dom/power/PowerManagerService.cpp
+++ b/dom/power/PowerManagerService.cpp
@@ -30,16 +30,17 @@
  * use your version of this file under the terms of the MPL, indicate your
  * decision by deleting the provisions above and replace them with the notice
  * and other provisions required by the GPL or the LGPL. If you do not delete
  * the provisions above, a recipient may use your version of this file under
  * the terms of any one of the MPL, the GPL or the LGPL.
  *
  * ***** END LICENSE BLOCK ***** */
 
+#include "mozilla/Hal.h"
 #include "PowerManagerService.h"
 
 namespace mozilla {
 namespace dom {
 namespace power {
 
 NS_IMPL_ISUPPORTS1(PowerManagerService, nsIPowerManagerService)
 
@@ -51,20 +52,22 @@ PowerManagerService::GetInstance()
   pmService = new PowerManagerService();
 
   return pmService.forget();
 }
 
 NS_IMETHODIMP
 PowerManagerService::Reboot()
 {
-  return NS_ERROR_NOT_IMPLEMENTED;
+  hal::Reboot();
+  return NS_OK;
 }
 
 NS_IMETHODIMP
 PowerManagerService::PowerOff()
 {
-  return NS_ERROR_NOT_IMPLEMENTED;
+  hal::PowerOff();
+  return NS_OK;
 }
 
 } // power
 } // dom
 } // mozilla