Moves MruWindowTracker to WmShell

ash/wm/overview/window_selector.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/wm/overview/window_selector.h"
 
 #include <algorithm>
 #include <functional>
 #include <set>
 #include <utility>
 #include <vector>
 
 #include "ash/ash_switches.h"
 #include "ash/common/accessibility_delegate.h"
 #include "ash/common/shelf/wm_shelf.h"
 #include "ash/common/shell_window_ids.h"
+#include "ash/common/wm/mru_window_tracker.h"
 #include "ash/common/wm/panels/panel_layout_manager.h"
 #include "ash/common/wm/switchable_windows.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm/wm_user_metrics_action.h"
 #include "ash/common/wm_lookup.h"
 #include "ash/common/wm_root_window_controller.h"
 #include "ash/common/wm_shell.h"
 #include "ash/common/wm_window.h"
 #include "ash/shell.h"
 #include "ash/wm/overview/window_grid.h"
@@ skipping 361 matching lines @@
       Move(LEFT, true);
   }
   if (grid_list_.empty())
     CancelSelection();
 }
 
 void WindowSelector::SelectWindow(WmWindow* window) {
   // Record UMA_WINDOW_OVERVIEW_ACTIVE_WINDOW_CHANGED if the user is selecting
   // a window other than the window that was active prior to entering overview
   // mode (i.e., the window at the front of the MRU list).
-  std::vector<WmWindow*> window_list = WmShell::Get()->GetMruWindowList();
+  std::vector<WmWindow*> window_list =
+      WmShell::Get()->GetMruWindowTracker()->BuildMruWindowList();
   if (!window_list.empty() && window_list[0] != window) {
     WmShell::Get()->RecordUserMetricsAction(
         wm::WmUserMetricsAction::WINDOW_OVERVIEW_ACTIVE_WINDOW_CHANGED);
   }
 
   window->GetWindowState()->Activate();
 }
 
 bool WindowSelector::HandleKeyEvent(views::Textfield* sender,
                                     const ui::KeyEvent& key_event) {
@@ skipping 211 matching lines @@
   for (size_t i = 0;
       i <= grid_list_.size() &&
       grid_list_[selected_grid_index_]->Move(direction, animate); i++) {
     selected_grid_index_ =
         (selected_grid_index_ + display_direction + grid_list_.size()) %
         grid_list_.size();
   }
 }
 
 }  // namespace ash