First cut at supporting activation in the window manager

mojo/services/view_manager/server_view_delegate.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_SERVER_VIEW_DELEGATE_H_
 #define MOJO_SERVICES_VIEW_MANAGER_SERVER_VIEW_DELEGATE_H_
 
 #include "mojo/services/view_manager/view_manager_export.h"
 
 namespace gfx {
@@ skipping 18 matching lines @@
   virtual void OnViewHierarchyChanged(const ServerView* view,
                                       const ServerView* new_parent,
                                       const ServerView* old_parent) = 0;
 
   virtual void OnViewBoundsChanged(const ServerView* view,
                                    const gfx::Rect& old_bounds,
                                    const gfx::Rect& new_bounds) = 0;
 
   virtual void OnViewSurfaceIdChanged(const ServerView* view) = 0;
 
+  virtual void OnViewReordered(const ServerView* view,
+                               const ServerView* relative,
+                               OrderDirection direction) = 0;
+
   virtual void OnWillChangeViewVisibility(const ServerView* view) = 0;
 
  protected:
   virtual ~ServerViewDelegate() {}
 };
 
 }  // namespace service
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_VIEW_MANAGER_SERVER_VIEW_DELEGATE_H_