Move view_manager service implementation to //services

mojo/services/view_manager/access_policy.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 MOJO_SERVICES_VIEW_MANAGER_ACCESS_POLICY_H_
-#define MOJO_SERVICES_VIEW_MANAGER_ACCESS_POLICY_H_
-
-#include "mojo/services/public/interfaces/view_manager/view_manager_constants.mojom.h"
-#include "mojo/services/view_manager/ids.h"
-
-namespace mojo {
-namespace service {
-
-class ServerView;
-
-// AccessPolicy is used by ViewManagerServiceImpl to determine what a connection
-// is allowed to do.
-class AccessPolicy {
- public:
-  virtual ~AccessPolicy() {}
-
-  // Unless otherwise mentioned all arguments have been validated. That is the
-  // |view| arguments are non-null unless otherwise stated (eg CanSetView() is
-  // allowed to take a NULL view).
-  virtual bool CanRemoveViewFromParent(const ServerView* view) const = 0;
-  virtual bool CanAddView(const ServerView* parent,
-                          const ServerView* child) const = 0;
-  virtual bool CanReorderView(const ServerView* view,
-                              const ServerView* relative_view,
-                              OrderDirection direction) const = 0;
-  virtual bool CanDeleteView(const ServerView* view) const = 0;
-  virtual bool CanGetViewTree(const ServerView* view) const = 0;
-  // Used when building a view tree (GetViewTree()) to decide if we should
-  // descend into |view|.
-  virtual bool CanDescendIntoViewForViewTree(const ServerView* view) const = 0;
-  virtual bool CanEmbed(const ServerView* view) const = 0;
-  virtual bool CanChangeViewVisibility(const ServerView* view) const = 0;
-  virtual bool CanSetViewSurfaceId(const ServerView* view) const = 0;
-  virtual bool CanSetViewBounds(const ServerView* view) const = 0;
-  virtual bool CanSetViewProperties(const ServerView* view) const = 0;
-
-  // Returns whether the connection should notify on a hierarchy change.
-  // |new_parent| and |old_parent| are initially set to the new and old parents
-  // but may be altered so that the client only sees a certain set of views.
-  virtual bool ShouldNotifyOnHierarchyChange(
-      const ServerView* view,
-      const ServerView** new_parent,
-      const ServerView** old_parent) const = 0;
-};
-
-}  // namespace service
-}  // namespace mojo
-
-#endif  // MOJO_SERVICES_VIEW_MANAGER_ACCESS_POLICY_H_