chromeos: Move files in //ash/common to //ash, part 1

ash/system/session/logout_confirmation_controller.h

Index: ash/system/session/logout_confirmation_controller.h
diff --git a/ash/common/system/chromeos/session/logout_confirmation_controller.h b/ash/system/session/logout_confirmation_controller.h
similarity index 88%
rename from ash/common/system/chromeos/session/logout_confirmation_controller.h
rename to ash/system/session/logout_confirmation_controller.h
index 8634bc03b654e1dbaecba702377d3554aa5b2691..1d531a89b465712066a9d95d6556a2fff62855d2 100644
--- a/ash/common/system/chromeos/session/logout_confirmation_controller.h
+++ b/ash/system/session/logout_confirmation_controller.h
@@ -2,14 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_COMMON_SYSTEM_CHROMEOS_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_
-#define ASH_COMMON_SYSTEM_CHROMEOS_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_
+#ifndef ASH_SYSTEM_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_
+#define ASH_SYSTEM_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_
 
 #include <memory>
 
 #include "ash/ash_export.h"
 #include "ash/common/shell_observer.h"
-#include "ash/common/system/chromeos/session/last_window_closed_observer.h"
+#include "ash/system/session/last_window_closed_observer.h"
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/time/time.h"
@@ -77,4 +77,4 @@ class ASH_EXPORT LogoutConfirmationController
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SYSTEM_CHROMEOS_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_
+#endif  // ASH_SYSTEM_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_