WIP: Eliminate event.target() usage from TrayEventFilter

ash/test/test_shell_delegate.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/test/test_shell_delegate.h"
 
 #include <limits>
 
 #include "ash/app_list/app_list_presenter_delegate.h"
 #include "ash/app_list/app_list_presenter_delegate_factory.h"
+#include "ash/container_delegate_aura.h"
 #include "ash/default_accessibility_delegate.h"
 #include "ash/gpu_support_stub.h"
 #include "ash/media_delegate.h"
 #include "ash/new_window_delegate.h"
 #include "ash/pointer_watcher_delegate_aura.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/test/test_keyboard_ui.h"
 #include "ash/test/test_session_state_delegate.h"
@@ skipping 177 matching lines @@
 }
 
 NewWindowDelegate* TestShellDelegate::CreateNewWindowDelegate() {
   return new NewWindowDelegateImpl;
 }
 
 MediaDelegate* TestShellDelegate::CreateMediaDelegate() {
   return new MediaDelegateImpl;
 }
 
+std::unique_ptr<ash::ContainerDelegate>
+TestShellDelegate::CreateContainerDelegate() {
+  return base::WrapUnique(new ContainerDelegateAura);
+}
+
 std::unique_ptr<PointerWatcherDelegate>
 TestShellDelegate::CreatePointerWatcherDelegate() {
   return base::WrapUnique(new PointerWatcherDelegateAura);
 }
 
 ui::MenuModel* TestShellDelegate::CreateContextMenu(
     ash::Shelf* shelf,
     const ash::ShelfItem* item) {
   return nullptr;
 }
@@ skipping 15 matching lines @@
 #if defined(OS_CHROMEOS)
   Shell* shell = Shell::GetInstance();
   static_cast<MediaDelegateImpl*>(shell->media_delegate())
       ->set_media_capture_state(state);
   shell->system_tray_notifier()->NotifyMediaCaptureChanged();
 #endif
 }
 
 }  // namespace test
 }  // namespace ash