Adds remainder of support for multiple roots to WS

components/mus/public/cpp/lib/in_flight_change.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 COMPONENTS_MUS_PUBLIC_CPP_LIB_IN_FLIGHT_CHANGE_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_LIB_IN_FLIGHT_CHANGE_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 14 matching lines @@
 class Window;
 class WindowTreeClientImpl;
 
 enum class ChangeType {
   ADD_CHILD,
   ADD_TRANSIENT_WINDOW,
   BOUNDS,
   DELETE_WINDOW,
   FOCUS,
   NEW_WINDOW,
+  NEW_TOP_LEVEL_WINDOW,
   PREDEFINED_CURSOR,
   PROPERTY,
   REMOVE_CHILD,
   REMOVE_TRANSIENT_WINDOW_FROM_PARENT,
   REORDER,
   VISIBLE,
 };
 
 // InFlightChange is used to track function calls to the server and take the
 // appropriate action when the call fails, or the same property changes while
@@ skipping 178 matching lines @@
 
  private:
   bool revert_visible_;
 
   DISALLOW_COPY_AND_ASSIGN(InFlightVisibleChange);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_LIB_IN_FLIGHT_CHANGE_H_