Mojo: Add PRESUBMIT.py to mojo/.

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

 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # TODO(vtl): "data" is a pretty vague name. Rename it?
 
 import copy
 
 import module as mojom
 
@@ skipping 20 matching lines @@
 # }
 # test_module = data.ModuleFromData(test_dict)
 
 # Used to create a subclass of str that supports sorting by index, to make
 # pretty printing maintain the order.
 def istr(index, string):
   class IndexedString(str):
     def __lt__(self, other):
       return self.__index__ < other.__index__
 
-  istr = IndexedString(string)
-  istr.__index__ = index
-  return istr
+  rv = IndexedString(string)
+  rv.__index__ = index
+  return rv
 
 def LookupKind(kinds, spec, scope):
   """Tries to find which Kind a spec refers to, given the scope in which its
   referenced. Starts checking from the narrowest scope to most general. For
   example, given a struct field like
     Foo.Bar x;
   Foo.Bar could refer to the type 'Bar' in the 'Foo' namespace, or an inner
   type 'Bar' in the struct 'Foo' in the current namespace.
 
   |scope| is a tuple that looks like (namespace, struct/interface), referring
@@ skipping 289 matching lines @@
     del struct.fields_data
   for interface in module.interfaces:
     interface.methods = map(lambda method:
         MethodFromData(module, method, interface), interface.methods_data)
     del interface.methods_data
 
   return module
 
 def OrderedModuleFromData(data):
   module = ModuleFromData(data)
-  next_interface_ordinal = 0
   for interface in module.interfaces:
     next_ordinal = 0
     for method in interface.methods:
       if method.ordinal is None:
         method.ordinal = next_ordinal
       next_ordinal = method.ordinal + 1
   return module