Delete the ViewManager and WindowManager services.

services/view_manager/server_view_drawn_tracker.h

-// Copyright 2015 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_SERVER_VIEW_DRAWN_TRACKER_H_
-#define SERVICES_VIEW_MANAGER_SERVER_VIEW_DRAWN_TRACKER_H_
-
-#include <set>
-
-#include "base/basictypes.h"
-#include "services/view_manager/server_view_observer.h"
-
-namespace view_manager {
-
-class ServerViewDrawnTrackerObserver;
-
-// ServerViewDrawnTracker notifies its observer any time the drawn state of
-// the supplied view changes.
-//
-// NOTE: you must ensure this class is destroyed before the root.
-class ServerViewDrawnTracker : public ServerViewObserver {
- public:
-  ServerViewDrawnTracker(ServerView* root,
-                         ServerView* view,
-                         ServerViewDrawnTrackerObserver* observer);
-  ~ServerViewDrawnTracker() override;
-
-  ServerView* view() { return view_; }
-
- private:
-  void SetDrawn(ServerView* ancestor, bool drawn);
-
-  // Adds |this| as an observer to |view_| and its ancestors.
-  void AddObservers();
-
-  // Stops observerving any views we added as an observer in AddObservers().
-  void RemoveObservers();
-
-  // ServerViewObserver:
-  void OnViewDestroyed(ServerView* view) override;
-  void OnViewHierarchyChanged(ServerView* view,
-                              ServerView* new_parent,
-                              ServerView* old_parent) override;
-  void OnViewVisibilityChanged(ServerView* view) override;
-
-  ServerView* root_;
-  ServerView* view_;
-  ServerViewDrawnTrackerObserver* observer_;
-  bool drawn_;
-  // Set of views we're observing. This is |view_| and all its ancestors.
-  std::set<ServerView*> views_;
-
-  DISALLOW_COPY_AND_ASSIGN(ServerViewDrawnTracker);
-};
-
-}  // namespace view_manager
-
-#endif  // SERVICES_VIEW_MANAGER_SERVER_VIEW_DRAWN_TRACKER_H_