First cut at supporting activation in the window manager

mojo/services/view_manager/server_view.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 "mojo/services/view_manager/server_view.h"
 
 #include "mojo/services/view_manager/server_view_delegate.h"
 
 namespace mojo {
 namespace service {
@@ skipping 55 matching lines @@
   DCHECK_GT(children_.size(), 1u);
   children_.erase(std::find(children_.begin(), children_.end(), child));
   Views::iterator i = std::find(children_.begin(), children_.end(), relative);
   if (direction == ORDER_DIRECTION_ABOVE) {
     DCHECK(i != children_.end());
     children_.insert(++i, child);
   } else if (direction == ORDER_DIRECTION_BELOW) {
     DCHECK(i != children_.end());
     children_.insert(i, child);
   }
+  delegate_->OnViewReordered(this, relative, direction);
 }
 
 void ServerView::SetBounds(const gfx::Rect& bounds) {
   if (bounds_ == bounds)
     return;
 
   const gfx::Rect old_bounds = bounds_;
   bounds_ = bounds;
   delegate_->OnViewBoundsChanged(this, old_bounds, bounds);
 }
@@ skipping 48 matching lines @@
   delegate_->OnViewSurfaceIdChanged(this);
 }
 
 void ServerView::RemoveImpl(ServerView* view) {
   view->parent_ = NULL;
   children_.erase(std::find(children_.begin(), children_.end(), view));
 }
 
 }  // namespace service
 }  // namespace mojo