Pass ServiceProvider thru ViewManagerService::Embed() allowing embedder & embeddee to expose servic…

mojo/examples/wm_flow/embedded/embeddee.mojom

Index: mojo/examples/wm_flow/embedded/embeddee.mojom
diff --git a/mojo/services/public/interfaces/surfaces/surface_id.mojom b/mojo/examples/wm_flow/embedded/embeddee.mojom
similarity index 74%
copy from mojo/services/public/interfaces/surfaces/surface_id.mojom
copy to mojo/examples/wm_flow/embedded/embeddee.mojom
index 5a7686da33112b7d5d64204c42d5f6da6efadc39..b989da23f539bbbe1fa5d761bb6c31c67d13c45d 100644
--- a/mojo/services/public/interfaces/surfaces/surface_id.mojom
+++ b/mojo/examples/wm_flow/embedded/embeddee.mojom
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-module mojo {
+module examples {
 
-struct SurfaceId {
-  uint64 id;
+interface Embeddee {
+  HelloBack() => ();
 };
 
 }