Add RootWindowController

chrome/browser/chromeos/power/screen_dimming_observer.cc

Index: chrome/browser/chromeos/power/screen_dimming_observer.cc
diff --git a/chrome/browser/chromeos/power/screen_dimming_observer.cc b/chrome/browser/chromeos/power/screen_dimming_observer.cc
index 7795760c279ae87c036d9873356edd1b30395874..a09204d5388a32269578b741fb9a8e0b67122ac6 100644
--- a/chrome/browser/chromeos/power/screen_dimming_observer.cc
+++ b/chrome/browser/chromeos/power/screen_dimming_observer.cc
@@ -5,7 +5,6 @@
 #include "chrome/browser/chromeos/power/screen_dimming_observer.h"
 
 #include "ash/shell.h"
-#include "ash/wm/screen_dimmer.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 
 namespace chromeos {
@@ -19,7 +18,7 @@ ScreenDimmingObserver::~ScreenDimmingObserver() {
 }
 
 void ScreenDimmingObserver::ScreenDimmingRequested(ScreenDimmingState state) {
-  ash::Shell::GetInstance()->screen_dimmer()->SetDimming(
+  ash::Shell::GetInstance()->SetDimming(
       state == PowerManagerClient::Observer::SCREEN_DIMMING_IDLE);
 }