mash: remove more shell/shelf WmWindow usage.

ash/metrics/user_metrics_recorder.cc

 // Copyright 2013 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/user_metrics_recorder.h"
 
 #include "ash/metrics/desktop_task_switch_metric_recorder.h"
 #include "ash/metrics/pointer_metrics_recorder.h"
 #include "ash/public/cpp/shelf_item.h"
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/session/session_controller.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shelf/shelf_model.h"
 #include "ash/shelf/shelf_view.h"
 #include "ash/shelf/wm_shelf.h"
 #include "ash/shell.h"
-#include "ash/shell_port.h"
 #include "ash/wm/window_state.h"
 #include "ash/wm/window_state_aura.h"
 #include "ash/wm_window.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/metrics/user_metrics.h"
 #include "ui/aura/window.h"
 
 namespace ash {
 
@@ skipping 591 matching lines @@
 void UserMetricsRecorder::OnShellShuttingDown() {
   desktop_task_switch_metric_recorder_.reset();
 
   // To clean up pointer_metrics_recorder_ properly, a valid shell instance is
   // required, so explicitly delete it before the shell instance becomes
   // invalid.
   pointer_metrics_recorder_.reset();
 }
 
 void UserMetricsRecorder::RecordPeriodicMetrics() {
-  WmShelf* shelf = WmShelf::ForWindow(ShellPort::Get()->GetPrimaryRootWindow());
+  WmShelf* shelf = WmShelf::ForWindow(Shell::GetPrimaryRootWindow());
   // TODO(bruthig): Investigating whether the check for |manager| is necessary
   // and add tests if it is.
   if (shelf) {
     // TODO(bruthig): Consider tracking the time spent in each alignment.
     UMA_HISTOGRAM_ENUMERATION("Ash.ShelfAlignmentOverTime",
                               shelf->SelectValueForShelfAlignment(
                                   SHELF_ALIGNMENT_UMA_ENUM_VALUE_BOTTOM,
                                   SHELF_ALIGNMENT_UMA_ENUM_VALUE_LEFT,
                                   SHELF_ALIGNMENT_UMA_ENUM_VALUE_RIGHT),
                               SHELF_ALIGNMENT_UMA_ENUM_VALUE_COUNT);
@@ skipping 18 matching lines @@
   return IsUserActive() && !IsKioskModeActive() && !IsArcKioskModeActive();
 }
 
 void UserMetricsRecorder::StartTimer() {
   timer_.Start(FROM_HERE,
                base::TimeDelta::FromSeconds(kAshPeriodicMetricsTimeInSeconds),
                this, &UserMetricsRecorder::RecordPeriodicMetrics);
 }
 
 }  // namespace ash