mash: Move directly linked NewWindowDelegate to mojom::NewWindowClient.

ash/test/ash_test_helper.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/test/ash_test_helper.h"
 
 #include "ash/accelerators/accelerator_controller_delegate_aura.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/test/material_design_controller_test_api.h"
+#include "ash/common/test/test_new_window_client.h"
 #include "ash/common/test/test_session_state_delegate.h"
 #include "ash/common/test/test_system_tray_delegate.h"
+#include "ash/common/test/wm_shell_test_api.h"
 #include "ash/common/wm_shell.h"
 #include "ash/shell.h"
 #include "ash/shell_init_params.h"
 #include "ash/test/ash_test_environment.h"
 #include "ash/test/ash_test_views_delegate.h"
 #include "ash/test/display_manager_test_api.h"
 #include "ash/test/shell_test_api.h"
 #include "ash/test/test_screenshot_delegate.h"
 #include "ash/test/test_shell_delegate.h"
 #include "base/run_loop.h"
@@ skipping 122 matching lines @@
   shell->screen_layout_observer()->set_show_notifications_for_testing(false);
 #endif
 
   test::DisplayManagerTestApi(Shell::GetInstance()->display_manager())
       .DisableChangeDisplayUponHostResize();
   ShellTestApi(shell).DisableDisplayAnimator();
 
   test_screenshot_delegate_ = new TestScreenshotDelegate();
   shell->accelerator_controller_delegate()->SetScreenshotDelegate(
       std::unique_ptr<ScreenshotDelegate>(test_screenshot_delegate_));
+
+  WmShellTestApi().SetNewWindowClient(base::MakeUnique<TestNewWindowClient>());
 }
 
 void AshTestHelper::TearDown() {
   // Tear down the shell.
   Shell::DeleteInstance();
   material_design_state_.reset();
   test::MaterialDesignControllerTestAPI::Uninitialize();
   ash_test_environment_->TearDown();
 
   test_screenshot_delegate_ = NULL;
@@ skipping 50 matching lines @@
 bool AshTestHelper::SupportsMultipleDisplays() {
 #if defined(OS_WIN)
   return false;
 #else
   return true;
 #endif
 }
 
 }  // namespace test
 }  // namespace ash