Make chrome/browser/chromeos/accessibility compile on Athena with use_ash=0

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 "ash/accessibility_delegate.h"
 #include "ash/ash_switches.h"
@@ skipping 255 matching lines @@
   text_filter_widget_.reset(
       CreateTextFilter(this, Shell::GetPrimaryRootWindow()));
 
   shell->activation_client()->AddObserver(this);
 
   shell->GetScreen()->AddObserver(this);
   shell->metrics()->RecordUserMetricsAction(UMA_WINDOW_OVERVIEW);
   HideAndTrackNonOverviewWindows();
   // Send an a11y alert.
   shell->accessibility_delegate()->TriggerAccessibilityAlert(
-      A11Y_ALERT_WINDOW_OVERVIEW_MODE_ENTERED);
+      ui::A11Y_ALERT_WINDOW_OVERVIEW_MODE_ENTERED);
 
   UpdateShelfVisibility();
 }
 
 WindowSelector::~WindowSelector() {
   ash::Shell* shell = ash::Shell::GetInstance();
 
   ResetFocusRestoreWindow(true);
   for (std::set<aura::Window*>::iterator iter = observed_windows_.begin();
        iter != observed_windows_.end(); ++iter) {
@@ skipping 294 matching lines @@
   for (size_t i = 0;
       i <= grid_list_.size() &&
       grid_list_[selected_grid_index_]->Move(direction, animate); i++) {
     // TODO(flackr): If there are more than two monitors, move between grids
     // in the requested direction.
     selected_grid_index_ = (selected_grid_index_ + 1) % grid_list_.size();
   }
 }
 
 }  // namespace ash