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

ash/system/date/clock_observer.h

Index: ash/system/date/clock_observer.h
diff --git a/ash/common/system/date/clock_observer.h b/ash/system/date/clock_observer.h
similarity index 78%
rename from ash/common/system/date/clock_observer.h
rename to ash/system/date/clock_observer.h
index 0ba4ed116e28e9dd88872aa953aa8d6e6fe578f1..a62e2be95a253fd88a5d16b2d239875ef17ba4d0 100644
--- a/ash/common/system/date/clock_observer.h
+++ b/ash/system/date/clock_observer.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_SYSTEM_DATE_CLOCK_OBSERVER_H_
-#define ASH_COMMON_SYSTEM_DATE_CLOCK_OBSERVER_H_
+#ifndef ASH_SYSTEM_DATE_CLOCK_OBSERVER_H_
+#define ASH_SYSTEM_DATE_CLOCK_OBSERVER_H_
 
 #include "ash/ash_export.h"
 
@@ -23,4 +23,4 @@ class ASH_EXPORT ClockObserver {
 
 }  // namespace ash
 
-#endif  // ASH_COMMON_SYSTEM_DATE_CLOCK_OBSERVER_H_
+#endif  // ASH_SYSTEM_DATE_CLOCK_OBSERVER_H_