mash: Migrate ShelfButton* to wm common types

ash/shelf/shelf_button_pressed_metric_tracker.cc

Index: ash/shelf/shelf_button_pressed_metric_tracker.cc
diff --git a/ash/shelf/shelf_button_pressed_metric_tracker.cc b/ash/shelf/shelf_button_pressed_metric_tracker.cc
deleted file mode 100644
index 19df2f02d47d624bb8d5a425b2abf43bbb76acac..0000000000000000000000000000000000000000
--- a/ash/shelf/shelf_button_pressed_metric_tracker.cc
+++ /dev/null
@@ -1,100 +0,0 @@
-// 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/shelf/shelf_button_pressed_metric_tracker.h"
-
-#include "ash/common/wm_shell.h"
-#include "base/metrics/histogram_macros.h"
-#include "base/time/default_tick_clock.h"
-#include "ui/views/controls/button/button.h"
-
-namespace ash {
-
-const char ShelfButtonPressedMetricTracker::
-    kTimeBetweenWindowMinimizedAndActivatedActionsHistogramName[] =
-        "Ash.Shelf.TimeBetweenWindowMinimizedAndActivatedActions";
-
-ShelfButtonPressedMetricTracker::ShelfButtonPressedMetricTracker()
-    : tick_clock_(new base::DefaultTickClock()),
-      time_of_last_minimize_(base::TimeTicks()),
-      last_minimized_source_button_(nullptr) {}
-
-ShelfButtonPressedMetricTracker::~ShelfButtonPressedMetricTracker() {}
-
-void ShelfButtonPressedMetricTracker::ButtonPressed(
-    const ui::Event& event,
-    const views::Button* sender,
-    ShelfItemDelegate::PerformedAction performed_action) {
-  RecordButtonPressedSource(event);
-  RecordButtonPressedAction(performed_action);
-
-  switch (performed_action) {
-    case ShelfItemDelegate::kExistingWindowMinimized:
-      SetMinimizedData(sender);
-      break;
-    case ShelfItemDelegate::kExistingWindowActivated:
-      if (IsSubsequentActivationEvent(sender))
-        RecordTimeBetweenMinimizedAndActivated();
-      break;
-    default:
-      break;
-  }
-
-  if (performed_action != ShelfItemDelegate::kExistingWindowMinimized)
-    ResetMinimizedData();
-}
-
-void ShelfButtonPressedMetricTracker::RecordButtonPressedSource(
-    const ui::Event& event) {
-  if (event.IsMouseEvent()) {
-    WmShell::Get()->RecordUserMetricsAction(
-        UMA_LAUNCHER_BUTTON_PRESSED_WITH_MOUSE);
-  } else if (event.IsGestureEvent()) {
-    WmShell::Get()->RecordUserMetricsAction(
-        UMA_LAUNCHER_BUTTON_PRESSED_WITH_TOUCH);
-  }
-}
-
-void ShelfButtonPressedMetricTracker::RecordButtonPressedAction(
-    ShelfItemDelegate::PerformedAction performed_action) {
-  switch (performed_action) {
-    case ShelfItemDelegate::kNoAction:
-    case ShelfItemDelegate::kAppListMenuShown:
-      break;
-    case ShelfItemDelegate::kNewWindowCreated:
-      WmShell::Get()->RecordUserMetricsAction(UMA_LAUNCHER_LAUNCH_TASK);
-      break;
-    case ShelfItemDelegate::kExistingWindowActivated:
-      WmShell::Get()->RecordUserMetricsAction(UMA_LAUNCHER_SWITCH_TASK);
-      break;
-    case ShelfItemDelegate::kExistingWindowMinimized:
-      WmShell::Get()->RecordUserMetricsAction(UMA_LAUNCHER_MINIMIZE_TASK);
-      break;
-  }
-}
-
-void ShelfButtonPressedMetricTracker::RecordTimeBetweenMinimizedAndActivated() {
-  UMA_HISTOGRAM_TIMES(
-      kTimeBetweenWindowMinimizedAndActivatedActionsHistogramName,
-      tick_clock_->NowTicks() - time_of_last_minimize_);
-}
-
-bool ShelfButtonPressedMetricTracker::IsSubsequentActivationEvent(
-    const views::Button* sender) const {
-  return time_of_last_minimize_ != base::TimeTicks() &&
-         last_minimized_source_button_ == sender;
-}
-
-void ShelfButtonPressedMetricTracker::SetMinimizedData(
-    const views::Button* sender) {
-  last_minimized_source_button_ = sender;
-  time_of_last_minimize_ = tick_clock_->NowTicks();
-}
-
-void ShelfButtonPressedMetricTracker::ResetMinimizedData() {
-  last_minimized_source_button_ = nullptr;
-  time_of_last_minimize_ = base::TimeTicks();
-}
-
-}  // namespace ash