Folds methods in WmShellCommon to WmShell

ash/common/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/common/wm/overview/window_selector.h"
 
 #include <algorithm>
 #include <functional>
 #include <set>
 #include <utility>
@@ skipping 438 matching lines @@
     // need to select a window on the newly selected grid.
     if (selected_grid_index_ == index - 1)
       Move(LEFT, true);
   }
   if (grid_list_.empty())
     CancelSelection();
 }
 
 void WindowSelector::SelectWindow(WmWindow* window) {
   std::vector<WmWindow*> window_list =
-      WmShell::Get()->GetMruWindowTracker()->BuildMruWindowList();
+      WmShell::Get()->mru_window_tracker()->BuildMruWindowList();
   if (!window_list.empty()) {
     // 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).
     if (window_list[0] != window) {
       WmShell::Get()->RecordUserMetricsAction(
           UMA_WINDOW_OVERVIEW_ACTIVE_WINDOW_CHANGED);
     }
     const auto it = std::find(window_list.begin(), window_list.end(), window);
     if (it != window_list.end()) {
@@ skipping 217 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