chromeos: Move files in //ash/common to //ash, part 2

ash/wm/always_on_top_controller.h

Index: ash/wm/always_on_top_controller.h
diff --git a/ash/common/wm/always_on_top_controller.h b/ash/wm/always_on_top_controller.h
similarity index 90%
rename from ash/common/wm/always_on_top_controller.h
rename to ash/wm/always_on_top_controller.h
index bdf144635571b64b393b894ecc369621c165df08..4f33eeeede88110c34b221b37a5a2011464a3add 100644
--- a/ash/common/wm/always_on_top_controller.h
+++ b/ash/wm/always_on_top_controller.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef ASH_COMMON_WM_ALWAYS_ON_TOP_CONTROLLER_H_
-#define ASH_COMMON_WM_ALWAYS_ON_TOP_CONTROLLER_H_
+#ifndef ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_
+#define ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_
 
 #include <memory>
 
@@ -48,4 +48,4 @@ class ASH_EXPORT AlwaysOnTopController : public aura::WindowObserver {
 
 }  // namepsace ash
 
-#endif  // ASH_COMMON_WM_ALWAYS_ON_TOP_CONTROLLER_H_
+#endif  // ASH_WM_ALWAYS_ON_TOP_CONTROLLER_H_