Standardize usage of virtual/override/final specifiers.

ui/app_list/views/app_list_main_view_unittest.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 "ui/app_list/views/app_list_main_view.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
@@ skipping 49 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(GridViewVisibleWaiter);
 };
 
 class AppListMainViewTest : public views::ViewsTestBase {
  public:
   AppListMainViewTest()
       : widget_(NULL),
         main_view_(NULL) {}
 
-  virtual ~AppListMainViewTest() {}
+  ~AppListMainViewTest() override {}
 
   // testing::Test overrides:
-  virtual void SetUp() override {
+  void SetUp() override {
     views::ViewsTestBase::SetUp();
     delegate_.reset(new AppListTestViewDelegate);
 
     // In Ash, the third argument is a container aura::Window, but it is always
     // NULL on Windows, and not needed for tests. It is only used to determine
     // the scale factor for preloading icons.
     main_view_ = new AppListMainView(delegate_.get());
     main_view_->SetPaintToLayer(true);
     main_view_->model()->SetFoldersEnabled(true);
     search_box_view_.reset(new SearchBoxView(main_view_, delegate_.get()));
     main_view_->Init(NULL, 0, search_box_view_.get());
 
     widget_ = new views::Widget;
     views::Widget::InitParams params =
         CreateParams(views::Widget::InitParams::TYPE_POPUP);
     params.bounds.set_size(main_view_->GetPreferredSize());
     widget_->Init(params);
 
     widget_->SetContentsView(main_view_);
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     widget_->Close();
     views::ViewsTestBase::TearDown();
     search_box_view_.reset();
     delegate_.reset();
   }
 
   // |point| is in |grid_view|'s coordinates.
   AppListItemView* GetItemViewAtPointInGrid(AppsGridView* grid_view,
                                             const gfx::Point& point) {
     const views::ViewModelT<AppListItemView>* view_model =
@@ skipping 231 matching lines @@
 
   // Additional mouse move operations should be ignored.
   gfx::Point point(1, 1);
   SimulateUpdateDrag(FolderGridView(), AppsGridView::MOUSE, dragged, point);
   EXPECT_FALSE(RootGridView()->has_dragged_view());
   EXPECT_FALSE(FolderGridView()->has_dragged_view());
 }
 
 }  // namespace test
 }  // namespace app_list