Mojo: Implement support for |Foo&| mojom syntax

mojo/public/tools/bindings/pylib/mojom/generate/generator.py

Index: mojo/public/tools/bindings/pylib/mojom/generate/generator.py
diff --git a/mojo/public/tools/bindings/pylib/mojom/generate/generator.py b/mojo/public/tools/bindings/pylib/mojom/generate/generator.py
index bea69b890529e81ac1e17d67fb20c114f2d7d25f..2b70a5ed762c069f4680923dd9d8c63e8748af81 100644
--- a/mojo/public/tools/bindings/pylib/mojom/generate/generator.py
+++ b/mojo/public/tools/bindings/pylib/mojom/generate/generator.py
@@ -44,11 +44,16 @@ def IsObjectKind(kind):
   return isinstance(kind, (mojom.Struct, mojom.Array)) or IsStringKind(kind)
 
 def IsHandleKind(kind):
-  return kind.spec.startswith('h') or isinstance(kind, mojom.Interface)
+  return kind.spec.startswith('h') or \
+         isinstance(kind, mojom.Interface) or \
+         isinstance(kind, mojom.InterfaceRequest)
 
 def IsInterfaceKind(kind):
   return isinstance(kind, mojom.Interface)
 
+def IsInterfaceRequestKind(kind):
+  return isinstance(kind, mojom.InterfaceRequest)
+
 def IsMoveOnlyKind(kind):
   return IsObjectKind(kind) or IsHandleKind(kind)