Revert "Delete the ViewManager and WindowManager services."

services/view_manager/view_locator.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_VIEW_LOCATOR_H_
+#define SERVICES_VIEW_MANAGER_VIEW_LOCATOR_H_
+
+namespace gfx {
+class Point;
+}
+
+namespace view_manager {
+
+class ServerView;
+
+// Finds the deepest visible view that contains the specified location.
+const ServerView* FindDeepestVisibleView(const ServerView* view,
+                                         const gfx::Point& location);
+ServerView* FindDeepestVisibleView(ServerView* view,
+                                   const gfx::Point& location);
+
+}  // namespace view_manager
+
+#endif  // SERVICES_VIEW_MANAGER_VIEW_LOCATOR_H_