Create a RegisterViewAssociate method in ViewManager

mojo/services/ui/views/interfaces/view_manager.mojom

Index: mojo/services/ui/views/interfaces/view_manager.mojom
diff --git a/mojo/services/ui/views/interfaces/view_manager.mojom b/mojo/services/ui/views/interfaces/view_manager.mojom
index 6592ea9119d0c4de1cece5eb2a507535f9bced46..9f3ebbefe2cefaa8702c0f894c466f53dad55928 100644
--- a/mojo/services/ui/views/interfaces/view_manager.mojom
+++ b/mojo/services/ui/views/interfaces/view_manager.mojom
@@ -67,4 +67,9 @@ interface ViewManager {
   CreateViewTree(mojo.ui.ViewTree& view_tree,
                  mojo.ui.ViewTreeListener view_tree_listener,
                  string? label);
+
+  // Registers a view associate with the view manager
+  //
+  // The services provided by |view_associate| will be made available to views

[jeffbrown, 2016/05/11 23:44:16]

nit: end each sentence with a period

We'll need to do some more work here for security later but we don't know what
form that will take.  So for now, it's ok to leave a TODO.

eg. TODO(mikejurka): This method should only be made accessible to trusted
services, once we have a security story.

[mikejurka, 2016/05/16 23:35:18]

Done.

+  RegisterViewAssociate(mojo.ui.ViewAssociate view_associate);
 };