Adds Embed() variant to ViewManagerService that takes ViewManagerClient

mojo/services/view_manager/public/cpp/view.h

Index: mojo/services/view_manager/public/cpp/view.h
diff --git a/mojo/services/view_manager/public/cpp/view.h b/mojo/services/view_manager/public/cpp/view.h
index 07bc5b0c20ff7fe64a8d09fb777d3d2e33581337..d888ef0998d80b4260f9d45cda1615b7969636a8 100644
--- a/mojo/services/view_manager/public/cpp/view.h
+++ b/mojo/services/view_manager/public/cpp/view.h
@@ -122,11 +122,12 @@ class View {
   // Focus.
   void SetFocus();
 
-  // Embedding.
+  // Embedding. See view_manager.mojom for details.
   void Embed(const String& url);
   void Embed(const String& url,
              InterfaceRequest<ServiceProvider> services,
              ServiceProviderPtr exposed_services);
+  void Embed(ViewManagerClientPtr client);
 
  protected:
   // This class is subclassed only by test classes that provide a public ctor.