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

ash/common/system/chromeos/brightness/brightness_controller_chromeos.h

Index: ash/common/system/chromeos/brightness/brightness_controller_chromeos.h
diff --git a/ash/system/brightness/brightness_controller_chromeos.h b/ash/common/system/chromeos/brightness/brightness_controller_chromeos.h
similarity index 77%
rename from ash/system/brightness/brightness_controller_chromeos.h
rename to ash/common/system/chromeos/brightness/brightness_controller_chromeos.h
index f6e7a0270f3fa899cab091e7e64969e9caac10c3..b93383209093592b0d5333761f207d2a6d43bfa8 100644
--- a/ash/system/brightness/brightness_controller_chromeos.h
+++ b/ash/common/system/chromeos/brightness/brightness_controller_chromeos.h
@@ -2,11 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_SYSTEM_BRIGHTNESS_BRIGHTNESS_CONTROLLER_CHROMEOS_H_
-#define ASH_SYSTEM_BRIGHTNESS_BRIGHTNESS_CONTROLLER_CHROMEOS_H_
+#ifndef ASH_COMMON_SYSTEM_CHROMEOS_BRIGHTNESS_BRIGHTNESS_CONTROLLER_CHROMEOS_H_
+#define ASH_COMMON_SYSTEM_CHROMEOS_BRIGHTNESS_BRIGHTNESS_CONTROLLER_CHROMEOS_H_
 
 #include "ash/ash_export.h"
-#include "ash/system/brightness_control_delegate.h"
+#include "ash/common/system/brightness_control_delegate.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 
@@ -35,4 +35,4 @@ class ASH_EXPORT BrightnessControllerChromeos
 }  // namespace system
 }  // namespace ash
 
-#endif  // ASH_SYSTEM_BRIGHTNESS_BRIGHTNESS_CONTROLLER_CHROMEOS_H_
+#endif  // ASH_COMMON_SYSTEM_CHROMEOS_BRIGHTNESS_BRIGHTNESS_CONTROLLER_CHROMEOS_H_