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

ash/common/system/tray/tray_popup_ink_drop_style.h

Index: ash/common/system/tray/tray_popup_ink_drop_style.h
diff --git a/ash/system/tray/tray_popup_ink_drop_style.h b/ash/common/system/tray/tray_popup_ink_drop_style.h
similarity index 82%
rename from ash/system/tray/tray_popup_ink_drop_style.h
rename to ash/common/system/tray/tray_popup_ink_drop_style.h
index aacb41c4a65b7c15822d2f6c177360bf49ab814b..94de103c62e06b7a89e7b5be19160ef33f1d0cc9 100644
--- a/ash/system/tray/tray_popup_ink_drop_style.h
+++ b/ash/common/system/tray/tray_popup_ink_drop_style.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_SYSTEM_TRAY_TRAY_POPUP_INK_DROP_STYLE_H_
-#define ASH_SYSTEM_TRAY_TRAY_POPUP_INK_DROP_STYLE_H_
+#ifndef ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_INK_DROP_STYLE_H_
+#define ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_INK_DROP_STYLE_H_
 
 namespace ash {
 
@@ -24,4 +24,4 @@ enum class TrayPopupInkDropStyle {
 
 }  // namespace ash
 
-#endif  // ASH_SYSTEM_TRAY_TRAY_POPUP_INK_DROP_STYLE_H_
+#endif  // ASH_COMMON_SYSTEM_TRAY_TRAY_POPUP_INK_DROP_STYLE_H_