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

ash/test/shelf_button_pressed_metric_tracker_test_api.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_TEST_SHELF_BUTTON_PRESSED_METRIC_TRACKER_TEST_API_H_
 #define ASH_TEST_SHELF_BUTTON_PRESSED_METRIC_TRACKER_TEST_API_H_
 
-#include "ash/common/shelf/shelf_button_pressed_metric_tracker.h"
+#include "ash/shelf/shelf_button_pressed_metric_tracker.h"
 
 #include <memory>
 
 #include "base/macros.h"
 #include "ui/events/event.h"
 
 namespace base {
 class TickClock;
 }  // namespace base
 
@@ skipping 12 matching lines @@
  private:
   ShelfButtonPressedMetricTracker* shelf_button_pressed_metric_tracker_;
 
   DISALLOW_COPY_AND_ASSIGN(ShelfButtonPressedMetricTrackerTestAPI);
 };
 
 }  // namespace test
 }  // namespace ash
 
 #endif  // ASH_TEST_SHELF_BUTTON_PRESSED_METRIC_TRACKER_TEST_API _H_