Fix accessibility event type fired from AppsGridView

ui/app_list/views/apps_grid_view.cc

 // Copyright (c) 2012 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 "ui/app_list/views/apps_grid_view.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 
@@ skipping 1100 matching lines @@
   if (!new_selection)
     return;  // Keep current selection.
 
   if (selected_view_)
     selected_view_->SchedulePaint();
 
   EnsureViewVisible(index);
   selected_view_ = new_selection;
   selected_view_->SetTitleSubpixelAA();
   selected_view_->SchedulePaint();
-  selected_view_->NotifyAccessibilityEvent(
-      ui::AX_EVENT_FOCUS, true);
+  selected_view_->NotifyAccessibilityEvent(ui::AX_EVENT_SELECTION, true);
 }
 
 bool AppsGridView::IsValidIndex(const Index& index) const {
   return index.page >= 0 && index.page < pagination_model_.total_pages() &&
          index.slot >= 0 && index.slot < tiles_per_page() &&
          GetModelIndexFromIndex(index) < view_model_.view_size();
 }
 
 AppsGridView::Index AppsGridView::GetIndexOfView(
     const AppListItemView* view) const {
@@ skipping 1050 matching lines @@
 
 void AppsGridView::SetAsFolderDroppingTarget(const Index& target_index,
                                              bool is_target_folder) {
   AppListItemView* target_view =
       GetViewDisplayedAtSlotOnCurrentPage(target_index.slot);
   if (target_view)
     target_view->SetAsAttemptedFolderTarget(is_target_folder);
 }
 
 }  // namespace app_list