Add support for multiple roots to the client lib.

mojo/services/public/cpp/view_manager/lib/view_tree_node.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/public/cpp/view_manager/view_tree_node.h"
 
 #include "mojo/services/public/cpp/view_manager/lib/view_manager_private.h"
 #include "mojo/services/public/cpp/view_manager/lib/view_manager_synchronizer.h"
 #include "mojo/services/public/cpp/view_manager/lib/view_private.h"
 #include "mojo/services/public/cpp/view_manager/lib/view_tree_node_private.h"
@@ skipping 254 matching lines @@
   //             embeddee in an embedder-embeddee relationship.
   if (manager_)
     CHECK_EQ(ViewPrivate(view).view_manager(), manager_);
   LocalSetActiveView(view);
   if (manager_) {
     ViewManagerPrivate(manager_).synchronizer()->SetActiveView(
         id_, active_view_->id());
   }
 }
 
+void ViewTreeNode::Embed(const String& url) {
+  ViewManagerPrivate(manager_).synchronizer()->Embed(url, id_);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // ViewTreeNode, protected:
 
 ViewTreeNode::ViewTreeNode()
     : manager_(NULL),
       id_(-1),
       parent_(NULL),
       active_view_(NULL) {}
 
 ViewTreeNode::~ViewTreeNode() {
@@ skipping 43 matching lines @@
 void ViewTreeNode::LocalSetBounds(const gfx::Rect& old_bounds,
                                   const gfx::Rect& new_bounds) {
   DCHECK(old_bounds == bounds_);
   ScopedSetBoundsNotifier notifier(this, old_bounds, new_bounds);
   bounds_ = new_bounds;
 }
 
 }  // namespace view_manager
 }  // namespace mojo