Removed Ash.AppList.TimeBetweenTaskSwitches and Ash.Tab.TimeBetweenSwitchToExistingTabUserActions h…

ash/metrics/task_switch_metrics_recorder.cc

 // 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.
 
 #include "ash/metrics/task_switch_metrics_recorder.h"
 
 #include "ash/metrics/task_switch_time_tracker.h"
 #include "base/memory/ptr_util.h"
 
 namespace ash {
 
 namespace {
 
 const char kAshTaskSwitchHistogramName[] = "Ash.TimeBetweenTaskSwitches";
 
 const char kDesktopHistogramName[] =
     "Ash.Desktop.TimeBetweenNavigateToTaskSwitches";
 
 const char kShelfHistogramName[] =
     "Ash.Shelf.TimeBetweenNavigateToTaskSwitches";
 
-const char kTabStripHistogramName[] =
-    "Ash.Tab.TimeBetweenSwitchToExistingTabUserActions";
-
 const char kAcceleratorWindowCycleHistogramName[] =
     "Ash.WindowCycleController.TimeBetweenTaskSwitches";
 
-const char kAppListHistogramName[] = "Ash.AppList.TimeBetweenTaskSwitches";
-
 const char kOverviewModeHistogramName[] =
     "Ash.WindowSelector.TimeBetweenActiveWindowChanges";
 
 // Returns the histogram name for the given |task_switch_source|.
 const char* GetHistogramName(TaskSwitchSource task_switch_source) {
   switch (task_switch_source) {
     case TaskSwitchSource::ANY:
       return kAshTaskSwitchHistogramName;
-    case TaskSwitchSource::APP_LIST:
-      return kAppListHistogramName;
     case TaskSwitchSource::DESKTOP:
       return kDesktopHistogramName;
     case TaskSwitchSource::OVERVIEW_MODE:
       return kOverviewModeHistogramName;
     case TaskSwitchSource::SHELF:
       return kShelfHistogramName;
-    case TaskSwitchSource::TAB_STRIP:
-      return kTabStripHistogramName;
     case TaskSwitchSource::WINDOW_CYCLE_CONTROLLER:
       return kAcceleratorWindowCycleHistogramName;
   }
   NOTREACHED();
   return nullptr;
 }
 
 }  // namespace
 
 TaskSwitchMetricsRecorder::TaskSwitchMetricsRecorder() {}
@@ skipping 33 matching lines @@
         histogram_map_.end());
 
   const char* histogram_name = GetHistogramName(task_switch_source);
   DCHECK(histogram_name);
 
   histogram_map_.add(static_cast<int>(task_switch_source),
                      base::MakeUnique<TaskSwitchTimeTracker>(histogram_name));
 }
 
 }  // namespace ash