Revert "Delete the ViewManager and WindowManager services."

services/view_manager/test_server_view_delegate.h

+// Copyright 2014 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.
+
+#ifndef SERVICES_VIEW_MANAGER_TEST_SERVER_VIEW_DELEGATE_H_
+#define SERVICES_VIEW_MANAGER_TEST_SERVER_VIEW_DELEGATE_H_
+
+#include "base/basictypes.h"
+#include "services/view_manager/server_view_delegate.h"
+
+namespace view_manager {
+
+class TestServerViewDelegate : public ServerViewDelegate {
+ public:
+  TestServerViewDelegate();
+  ~TestServerViewDelegate() override;
+
+ private:
+  // ServerViewDelegate:
+  void PrepareToDestroyView(ServerView* view) override;
+  void PrepareToChangeViewHierarchy(ServerView* view,
+                                    ServerView* new_parent,
+                                    ServerView* old_parent) override;
+  void PrepareToChangeViewVisibility(ServerView* view) override;
+  void OnScheduleViewPaint(const ServerView* view) override;
+
+  DISALLOW_COPY_AND_ASSIGN(TestServerViewDelegate);
+};
+
+}  // namespace view_manager
+
+#endif  // SERVICES_VIEW_MANAGER_TEST_SERVER_VIEW_DELEGATE_H_