Update mojo sdk to rev cc531b32182099a5a034a99daff35ed5d38a61c8

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

Index: mojo/public/tools/bindings/pylib/mojom/generate/module.py
diff --git a/mojo/public/tools/bindings/pylib/mojom/generate/module.py b/mojo/public/tools/bindings/pylib/mojom/generate/module.py
index b0dbb1d6de1b3c7533a9d2d7f2cb2cee5db1de4a..8e52924f27d22cd2615559c29542691301384950 100644
--- a/mojo/public/tools/bindings/pylib/mojom/generate/module.py
+++ b/mojo/public/tools/bindings/pylib/mojom/generate/module.py
@@ -277,6 +277,9 @@ class InterfaceRequest(ReferenceKind):
 
   def __init__(self, kind=None):
     if kind is not None:
+      if not isinstance(kind, Interface):
+        raise Exception(
+            "Interface request requires %r to be an interface." % kind.spec)
       ReferenceKind.__init__(self, 'r:' + kind.spec)
     else:
       ReferenceKind.__init__(self)