chromeos: Move files in //ash/common to //ash

ash/metrics/task_switch_metrics_recorder.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_METRICS_TASK_SWITCH_METRIC_RECORDER_H_
 #define ASH_METRICS_TASK_SWITCH_METRIC_RECORDER_H_
 
 #include <memory>
 #include <string>
 #include <unordered_map>
 
 #include "ash/ash_export.h"
-#include "ash/common/metrics/task_switch_source.h"
+#include "ash/metrics/task_switch_source.h"
 #include "base/macros.h"
 
 namespace ash {
 
 class TaskSwitchTimeTracker;
 
 // The TaskSwitchMetricsRecorder class records UMA metrics related to task
 // switching. The main purpose of the TaskSwitchMetricsRecorder is to track time
 // deltas between task switches and record histograms of the deltas.
 class ASH_EXPORT TaskSwitchMetricsRecorder {
@@ skipping 40 matching lines @@
   // TaskSwitchTimeTracker is needed for a given source.
   std::unordered_map<int, std::unique_ptr<TaskSwitchTimeTracker>>
       histogram_map_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskSwitchMetricsRecorder);
 };
 
 }  // namespace ash
 
 #endif  // ASH_METRICS_TASK_SWITCH_METRIC_RECORDER_H_