Makes WindowTree take the AccessPolicy

components/mus/ws/window_manager_access_policy.cc

 // 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.
 
 #include "components/mus/ws/window_manager_access_policy.h"
 
 #include "components/mus/ws/access_policy_delegate.h"
 #include "components/mus/ws/server_window.h"
 
 namespace mus {
 namespace ws {
 
-// TODO(sky): document why this differs from default for each case. Maybe want
-// to subclass DefaultAccessPolicy.
-
-WindowManagerAccessPolicy::WindowManagerAccessPolicy(
-    ConnectionSpecificId connection_id,
-    AccessPolicyDelegate* delegate)
-    : connection_id_(connection_id), delegate_(delegate) {}
+WindowManagerAccessPolicy::WindowManagerAccessPolicy() {}
 
 WindowManagerAccessPolicy::~WindowManagerAccessPolicy() {}
 
+void WindowManagerAccessPolicy::Init(ConnectionSpecificId connection_id,
+                                     AccessPolicyDelegate* delegate) {
+  connection_id_ = connection_id;
+  delegate_ = delegate;
+}
+
 bool WindowManagerAccessPolicy::CanRemoveWindowFromParent(
     const ServerWindow* window) const {
   return true;
 }
 
 bool WindowManagerAccessPolicy::CanAddWindow(const ServerWindow* parent,
                                              const ServerWindow* child) const {
   return true;
 }
 
@@ skipping 126 matching lines @@
     const ClientWindowId& id) const {
   // The WindowManager see windows created from other clients. If the WM doesn't
   // use the connection id when creating windows the WM could end up with two
   // windows with the same id. Because of this the wm must use the same
   // connection id for all windows it creates.
   return WindowIdFromTransportId(id.id).connection_id == connection_id_;
 }
 
 }  // namespace ws
 }  // namespace mus