Embedding demo in View manager

mojo/services/public/cpp/view_manager/lib/view_manager_private.h

Index: mojo/services/public/cpp/view_manager/lib/view_manager_private.h
diff --git a/mojo/services/public/cpp/view_manager/lib/view_manager_private.h b/mojo/services/public/cpp/view_manager/lib/view_manager_private.h
index edd55cc1d10e0f7d86ab13f11b1d3e7b535c4672..a2b2aab3fe2cb5d222560f80db22caec3209066e 100644
--- a/mojo/services/public/cpp/view_manager/lib/view_manager_private.h
+++ b/mojo/services/public/cpp/view_manager/lib/view_manager_private.h
@@ -20,9 +20,11 @@ class ViewManagerPrivate {
   ~ViewManagerPrivate();
 
   ViewManagerSynchronizer* synchronizer() {
-    return manager_->synchronizer_.get();
+    return manager_->synchronizer_;
+  }
+  void set_synchronizer(ViewManagerSynchronizer* synchronizer) {
+    manager_->synchronizer_ = synchronizer;
   }
-  ServiceProvider* service_provider() { return manager_->service_provider_; }
 
   void set_root(ViewTreeNode* root) { manager_->tree_ = root; }