Revert of Show small notification icons in notification tray

ash/wm/panels/panel_layout_manager_unittest.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 "ash/common/wm/panels/panel_layout_manager.h"
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/ash_switches.h"
 #include "ash/common/shelf/shelf_button.h"
 #include "ash/common/shelf/shelf_model.h"
 #include "ash/common/shelf/shelf_types.h"
 #include "ash/common/shelf/shelf_view.h"
 #include "ash/common/shell_window_ids.h"
-#include "ash/common/system/web_notification/web_notification_tray.h"
 #include "ash/common/wm/mru_window_tracker.h"
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm_shell.h"
 #include "ash/screen_util.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shelf/shelf_util.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
@@ skipping 23 matching lines @@
   PanelLayoutManagerTest() {}
   ~PanelLayoutManagerTest() override {}
 
   void SetUp() override {
     test::AshTestBase::SetUp();
     ASSERT_TRUE(test::TestShelfDelegate::instance());
 
     shelf_view_test_.reset(
         new test::ShelfViewTestAPI(GetShelfView(Shelf::ForPrimaryDisplay())));
     shelf_view_test_->SetAnimationDuration(1);
-
-    WebNotificationTray::DisableAnimationsForTest(true);
-  }
-
-  void TearDown() override {
-    test::AshTestBase::TearDown();
-
-    WebNotificationTray::DisableAnimationsForTest(false);  // Reenable animation
   }
 
   aura::Window* CreateNormalWindow(const gfx::Rect& bounds) {
     return CreateTestWindowInShellWithBounds(bounds);
   }
 
   aura::Window* CreatePanelWindowWithDelegate(aura::WindowDelegate* delegate,
                                               const gfx::Rect& bounds) {
     aura::Window* window = CreateTestWindowInShellWithDelegateAndType(
         delegate, ui::wm::WINDOW_TYPE_PANEL, 0, bounds);
@@ skipping 740 matching lines @@
   touch.set_location(gfx::Point(bounds.x() - 1, bounds.y() + 5));
   target = targeter->FindTargetForEvent(root, &touch);
   EXPECT_NE(w.get(), target);
 }
 
 INSTANTIATE_TEST_CASE_P(LtrRtl,
                         PanelLayoutManagerTextDirectionTest,
                         testing::Bool());
 
 }  // namespace ash