Revert "Delete the ViewManager and WindowManager services."

services/window_manager/view_targeter.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_WINDOW_MANAGER_VIEW_TARGETER_H_
+#define SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_
+
+#include "ui/events/event.h"
+#include "ui/events/event_targeter.h"
+
+namespace window_manager {
+
+class ViewTarget;
+
+class ViewTargeter : public ui::EventTargeter {
+ public:
+  ViewTargeter();
+  ~ViewTargeter() override;
+
+ protected:
+  // ui::EventTargeter:
+  ui::EventTarget* FindTargetForEvent(ui::EventTarget* root,
+                                      ui::Event* event) override;
+  ui::EventTarget* FindNextBestTarget(ui::EventTarget* previous_target,
+                                      ui::Event* event) override;
+
+  ui::EventTarget* FindTargetForLocatedEvent(ui::EventTarget* root,
+                                             ui::LocatedEvent* event);
+  bool SubtreeShouldBeExploredForEvent(ui::EventTarget* target,
+                                       const ui::LocatedEvent& event);
+  bool SubtreeCanAcceptEvent(ui::EventTarget* target,
+                             const ui::LocatedEvent& event) const;
+  bool EventLocationInsideBounds(ui::EventTarget* target,
+                                 const ui::LocatedEvent& event) const;
+
+ private:
+  // Targets either the root View or the currently focused view.
+  ViewTarget* FindTargetForKeyEvent(ViewTarget* view, const ui::KeyEvent& key);
+
+  // Deals with cases where the |root_view| needs to change how things are
+  // dispatched. (For example, in the case of capture.)
+  ViewTarget* FindTargetInRootView(ViewTarget* root_view,
+                                   const ui::LocatedEvent& event);
+
+  DISALLOW_COPY_AND_ASSIGN(ViewTargeter);
+};
+
+}  // namespace window_manager
+
+#endif  // SERVICES_WINDOW_MANAGER_VIEW_TARGETER_H_