GRC: Hook up the frame-level CoordinationUnit

services/resource_coordinator/public/interfaces/coordination_unit.mojom

Index: services/resource_coordinator/public/interfaces/coordination_unit.mojom
diff --git a/services/resource_coordinator/public/interfaces/coordination_unit.mojom b/services/resource_coordinator/public/interfaces/coordination_unit.mojom
index c8c35aacbc9426abc215057370d895e4e8c9712a..ce866b38f821c7334aaec6a8d647060f8b5087ed 100644
--- a/services/resource_coordinator/public/interfaces/coordination_unit.mojom
+++ b/services/resource_coordinator/public/interfaces/coordination_unit.mojom
@@ -37,7 +37,9 @@ interface CoordinationUnit {
   // children in AddChild()
   GetID() => (CoordinationUnitID id);
 
-  Duplicate(CoordinationUnit& request);
+  // Add a new binding to an existing CoordinationUnit.
+  AddBinding(CoordinationUnit& request);
+
   // child_id must represent a CU which already exists service-side,
   // and can't be a direct ascendent or descendent of the current unit.
   AddChild(CoordinationUnitID child_id);